Today, we're looking at the spending habits of women who are 30-years-old in different cities in the U.S. These days, it seems like many people see turning 30 as a major turning point in their lives, personally and professionally. One recent, high profile example of that is Lady Gaga, who said that she wanted to "explode" into her 30s , and now owns who she is with the hope of showing others what that can look like.