I thrift pretty much all the time, not because I can't afford new but because buying amazing and often unworn clothing for 90% off retail price spoils you. Look around to find the best thrift stores...if you can find a Goodwill in or near a wealthy neighborhood where rich old ladies donate their best stuff then camp out there! And some stores are better at marking up designer wares, try to find a place where they don't know their Payless from Prada. And go the day after a big store-wide sale...those 50% off sales are the way for a thrift store to get rid of the crap that is clogging up their shelves. The day after they will refill the shelves and your chances of finding something great is that much more likely. That being said 50% off sales are pretty great too, who knows what kinds of things have remained unsold...