Help with picking lipstick

Okay so I'm not really big on New Year's resolutions because most people quit them by the end of January but I am one of those people who thinks 2013 sucked a lot and am looking forward to a fresh start in the new year. So I've decided to put a little bit more effort into my appearance. I really like wearing lipstick but am terrible at figuring out what colors look good on me and inevitably end up picking out a shade that isn't flattering. I have a drawer full of ugly lipstick. Any easy tricks or tips to picking out a shade that will look good?