Shopping Snapshots: May 23 - Slide Show - NYTimes.com THE SUMMER MONTHS call for some stylish essentials you can simply toss into your carryall. Now that Memorial Day is here, what will they be? We've streamlined the list to five items - maybe seven if you have a big bag. Think a cover-up dress, a new-style denim jacket, a special hat, cool sandals and the perfect pair of sunglasses. Add a swimsuit and toiletries and you're just about good to go, all summer long.