I LOVE shopping at thrift shops! Some of my favorite clothes come from resale shops. I love Chicos clothing, and there's a thrift shop near my parents' house and I swear some woman who consigns things there is exactly my size and loves Chicos too. I'll let her pay full price and I'll happily wear her cast offs!
I taught my kids how to hit a thrift shop too. I'd give them each a budget of, say $100 when school started. As you know, that won't buy much at the mall. One son of mine was really image conscious, and he'd always only get two or three things for his money. But the other son? Man, he'd come out of Goodwill with two trash bags full of clothes, and with money left over!