A purse is a very personal thing; it's both a fashion statement and a medicine cabinet when you’re away from home. I always thought I’d be able to stick with the small purses I used in high school, but over time, I’ve needed more and more room to contain all the things I might use on an average day. I’ve got everything from a book to my iPod in mine — and then of course there's my makeup bag, my wallet, and my sunglasses! What about you? Do tell, ladies, what are the must-haves in your bag?