Every year, when summer starts rolling in we're always dying to go on a swimsuit shopping spree. Something about buying bikinis and one-pieces is just so exciting--it tricks us into thinking we'll be spending the summer on the beach instead of in the office. That being said, since most of us won't actually be beachside most of the season, it doesn't really make sense to spend a fortune on a swimsuit. So, we've put together the ultimate trend-focused swim shopping guide--all under $100.