Yes, I shop at thrift stores. I set certain standards for my shopping so that I don't just overload my closet or drawers with stuff that I don't need. First of all, the local Goodwill has .50 sales on certain items on Sunday and Monday of each week. Usually, Salvation Army stores and Goodwills will have a certain day where certain items will be on sale. While the sale items are my priority, if I see a pair of pants for work (I am a school librarian), I will spluge and pay full price - $4.99. I have found Liz Claibourne dress trousers for .50 - almost brand new.
Also, unless it's an item that I really need, I don't buy used clothing that I can buy at Wal-Mart. I look for more expensive brands and have several pieces in my wardrobe such as Talbots, Chico's, Worthington, and several Nine West purses for $4.00 each.
It's the thrill of the hunt!! Don't forget to look at housewares. I found a service for 4 of Miriska china for almost nothing. I try not to buy dated styles. I enjoy "window" shopping at the mall to keep current with styles so that when I find a Goodwill bargain, then I can recognize it. Also, don't forget looking for buttons on the sale clothing. A blouse might not be something you want to wear, but the buttons may be worth quite a small fortune.