Can I estimate other people's credit limit at the grocery store?
What you're referring to is Visa Easy Payment Services (VEPS). Other payment processors have similar programs. Basically, certain merchants (based on merchant category code - or MCC), are not required to obtain a signature under $50. This limit was raised to $50 from $25 last year. Here is the press release from Visa describing the increase, and the program in general. The minimum amount is set by the merchant services provider based on the kind of business, its location and the history. It mostly has nothing to do with you personally. However, the minimum amount differs based on the kind of credit cards being used. For example, foreign credit cards will require signatures on much lower amounts than domestic.  In my local Safeway (NoCal analog of Ralph's) the limit for domestic credit cards is set at $50. If your credit limit is $5000, you might think that its a 1% of your limit. But if your limit is $50000 or $500 - it will still be $50. You cannot deduce anything about a specific person's credit situation based on whether or not they are required to sign the receipt. It has no affect on the decision.
It is possible to not use checks in the US. I personally use a credit card for almost everything and often have no cash in my wallet at all. I never carry checks with me. If we wanted to, we could pay all of our monthly bills without checks as well, and many people do this. 30 years ago, grocery stores didn't generally accept credit cards, so it was cash or check, though most other kinds of stores and restaurants did. Now, the only stores that I have encountered in years that do not accept credit cards are a local chicken restaurant, and the warehouse-shopping store Costco. (Costco accepts its own credit card, but not Mastercard or Visa.) Still, we do pay the majority of our monthly bills via check, and it would not be shocking to see someone paying for groceries with a check. I can't name the last time I saw someone write a check at a store exactly, but I've never seen any cashier or other patrons wonder what a check-writer was trying to do. Large transactions, like buying a car or house, would still use checks -- probably cashier's or certified checks and not personal checks, though. Your score is real-time, updating every time new data hits the reporting agencies. Dilip is correct, go over 20%, and it will hit the report, but then the score returns to normal after the next bill shows a sub-20% utilization.  Say your average spending is $1000, but your limit is $5000. There's no harm in asking for a small increase in the limit, or simply pay a bit toward the bill before the statement is cut. The bill and reported balance will be lower and your score, unaffected. The cost to the store is small. They may have to pay a slightly greater fee because the transaction is now bigger. They do need additional cash on hand. Even though the majority of transactions are electronic (credit/debit) or check, the local grocery store still seems to have significant cash on hand. This is seen as a customer service. If there is a 2% fee the $50 advance costs them $1 for the minority of customers that take advantage of it. After more than 10 years of doing this they have figured this into the cost of groceries. Of course the credit card company could also waive the fee to store. My credit card online statement does tell me how much cash back was received. The line says date, store, amount ($40.00 cash over and $123.45 purchases) $163.45 total. Therefore the credit card company knows that cash back was used. My bank will let me download credit card transactions directly into a personal finance program, and by assigning categories to stores I can get at least a rough overview of that sidd of things, and then adjust categories/splits when needed. Ditto checks. Most of my spending is covered by those. Doesn't help with cash transactions, though; if I want to capture those accurately I need to save receipts. There are ocr products which claim to help capture those; haven't tried them. Currently, since my spending is fairly stable, I'm mostly leaving those as unknown; that wouldn't work for you. In some stores that is done. When I shop at the Apple store or at the Farmers market the receipt is automatically sent to my email address. Why don't others do it? If the target of the itemized receipt is a credit card company they would be sending data that they spent collecting to another corporation. The grocery store is collecting your data so they can sell it to their vendors. They sell to vendors the info that Gen X shoppers that buy cat food are more likely to use brand X laundry detergent then Millennials. The credit card companies could gather even more Meta data that they could sell. Privacy. Some people don't join the reward program at the store because they don't want a company to know exactly what they buy. Even fewer would want the credit card company to have that information.  The credit card companies would have to want this level of data that would have to be stored, maintained, and protected. "I can't think of any conceivable circumstance in which the banker's advice would be true. (edit: Actually, yes I can, but things haven't worked that way since 1899 so his information is a little stale. Credit bureaus got their start by only reporting information about bad debtors.) The bureaus only store on your file what gets reported to them by the institution who extended you the credit. This reporting tends to happen at 30, 60 or 90-day intervals, depending on the contract the bureau has with that institution. All credit accounts are ""real"" from the day you open them. I suspect the banker might be under the misguided impression the account doesn't show up on your report (become ""real"") until you miss a payment, which forces the institution to report it, but this is incorrect-- the institution won't report it until the 30-day mark at the earliest, whether or not you miss a payment or pay it in full. The cynic in me suspects this banker might give customers such advice to sabotage their credit so he can sell them higher-interest loans. UDAAP laws were created for a reason." The stores track the individual items for inventory planning and marketing purposes. Having worked in the transaction processing business for a time (writing one), I can say with confidence that the credit/debit card companies do not receive an itemized list of the items involved in the transaction. There is usually a description field in the information transmitted to the processor, which may or may not contain useful information. But it is not big enough to contain an itemized grocery list of any size. And it is not standardized in any way that would facilitate reliable parsing. There may be an amount of metadata about the transaction that would indicate the types of products involved in the transaction, which they can also infer from the merchant reporting the transaction. There are efforts to increase the amount of data reported, but they are not widely used yet, due to the overwhelming numbers of banks that would need to be upgraded. These efforts are rolling out only in specific and limited uses where the banks involved are willing to upgrade software and equipment. For now, the best way to know what you bought is to keep your receipts from the store. Shoeboxes work great for this. So do smartphone cameras and a folder on your hard drive. There are also mobile apps that track receipts for you, and may even try to OCR the data for you. "There's no easy solution to this. Unfortunately I think you need a different approach, as you say, using software to track expenses to visualise the percentages and such hasn't helped and in my own experience this sort of money management does not work with all people. Maybe you need to look at the expenses and decide what you can cut out. Somehow we all need to make a distinction between what we need (milk, bread) and what we don't need (magazines, dvds) but still purchase every now and then. Sadly buying things for the second category quickly builds up a bill just as big as the one for the weekly shop only that it contains nothing of actual value and it just seems too easy for some to spend and equal amount of money on ""wants"" as on ""needs"" and if a substantial amount of your outgoings are in this category that's where you need to focus the discussion. If you can't find any purchases like that I suspect you need to buy less expensive food." Well following your train of thought, if someone used the Visa/Amex/MC gift cards to buy something at another store, couldn't Visa/Amex/MC go to those stores and ask for evidence of who used the cards and then go after those people?  The rabbit hole could go pretty deep, but if the amount was large enough they might be motivated to at least make examples of some people to discourage this in the future. Yes, this is definitely possible. You can optimize your credit worthiness within 18 months, you would first start with a secured credit card just to establish a little bit of credit history and then use that as a jumping point 6 months later to do several unsecured credit card applications. As a student, your primary limiting factor will be your truthful income when you apply for the cards, resulting in low limits, where using less than 30% of those limits is not a useful amount of money. Your credit scores can be looked at as a spendable balance. New inquiries spend some of that balance, low utilization earns you more of the balance. They will trend upwards with the right approach, and you can use the balance at their highs to time more inquiries. Note: My answers typically differ in that I narrowly tailor my answers to the question asked, and don't masquerade or acknowledge the idea of advice. Impulsive spenders with credit have bad credit, I can live with that. I work in the retail software industry, and can confirm this is a major problem right now.  There are several very popular point of sale packages that hackers have written RAM scrapers for.  Yes, there is (a lot) of credit card fraud traced back to these hacks. "As anecdotal experience, we have a credit account in my name as offered by bank's marketing before I could qualify by common rules for newcomers (I have an account there for years so they knew my history and reliability dynamics I guess), and my wife is subscribed as a secondary user to the same credit account with a separate card. So we share the same limits (e.g. max month usage/overdraft) and benefits (bank's discounts and bonuses when usage passes certain thresholds - and it's easier to gain these points together than alone) so in the end maintenance of the card costs zero or close to that on most months, while the card is in a program to get discounts from hundreds of shops and even offers a free or discounted airport lounge access in some places :) But the bonus program is just that - benefits come and go as global economics changes; e.g. we had free car assistance available for a couple of years but it is gone since last tariff update. Generally it is beneficial for us to do all transactions including rent etc. via these two credit cards to the same account, and then recharge its overdraft as salaries come in - we have an ""up to 50 days"" cooloff period (till 20th of next calendar month) with no penalties on having taken the loans - but if we ever did overstretch that, then tens of yearly percents would kick in. Using the card(s) for daily ops, there is a play on building up the credit history as well: while we don't really need the loans to get from month to month, it helps build an image in the face of credit organizations, which can help secure e.g. favorable mortgage rates (and other contract conditions) which are out of pocket money range :) I'd say it is not only a ""we against the system"" sort of game though, as it sort of trains our own financial discipline - every month we have (a chance) to go over our spendings to see what we did, and so we more regularly think about it in the end - so the bank probably benefits from dealing with more-educated less-random customers when it comes to the bigger loans. Regarding internet, we tend to trust more to a debit card which we populate with pocket money sufficient for upcoming or already placed (blocked) transactions. After all, a malicious shop can not sip off thousands of credit money - but only as much as you've pre-allocated there on debit." Yes, you did. To give an example of the contract terms that allow this, the [Capital One credit card agreement](https://www.capitalone.com/media/doc/credit-cards/Credit-Card-Agreement-for-Consumer-Cards-in-Capital-One-N.A.pdf) states:  &gt; Credit Reports &gt;  &gt; We may report information about your Account to credit bureaus and others. Late payments, missed payments, or other defaults on your Account may be reflected in your credit report. Information we provide may appear on your and the Authorized Users’ credit reports. &gt; &gt; If you believe that we have reported inaccurate information about your Account to a credit bureau or other consumer reporting agency, notify us in writing at PO Box 30281, Salt Lake City, UT 84130-0281. When you write, tell us the specific information that you believe is incorrect and why you believe it is incorrect. &gt; &gt; We may obtain and use credit, income and other information about you from credit bureaus and others as the law allows. I'm NMLS with a bank, won't name it, but you can buy and sell points up to .5 if I remember right.  Might be 1% but it's the difference between 1300 and 1700 if I remember right for monthly payments. "Well, I answered a very similar question ""Credit card payment date"" where I showed that for a normal cycle, the average charge isn't due for 40 days. The range is 35-55, so if you want to feel good about the float just charge everything the day after the cycle closes, and nothing else the rest of the month. Why is this so interesting? It's no trick, and no secret.  By the way, this isn't likely to be of any use when you're buying gas, groceries, or normal purchases. But, I suppose if you have a large purchase, say a big TV, $3000, this will buy you extra time to pay. It would be remiss of me to not clearly state that anyone who needs to take advantage of this ""trick"" is the same person who probably shouldn't use credit cards at all. Those who use cards are best served by charging what they can afford to pay at that moment and not base today's charges on what paychecks will come in by the due date of the credit card bill."