Since Lisa asked so nicely, I present a picture of my thrifted skirt. Apologies if you don't care about clothes. . .

I'm wearing it right now, in fact. I've just finished at the gym and have installed myself in one of the overstuffed chairs at the coffee shop. I was going to read a submission, but then it occurred to me to update instead, so that's what I'm doing. Shhh.
Anyway, I've been having some good thrifting luck lately, it seems. Really, all that means is that I've been going to the thrift store more often -- the number of good finds you score is just a result of persistence, after all. Both the skirt and the shirt I'm wearing in that photo were originally from the Gap, and they were both only $3. As I noted on flickr, my tights and the t-shirt under the button-up are also from the Gap; they had several years where I was totally unimpressed with their clothes, but I'm sort of in love with them now. Do they still use, like, tiny baby monkeys to make their clothes?
I also found this tunic-y shirt yesterday for $4 (I think it's CK, if I'm remembering correctly). And I got a pair of jeans for $3 (from Hollister? I've never been inside one, because it looks like a Young Person's Store. I also can't go into Abercrombie & Fitch because the volume of the music.). They're not the most amazing jeans ever, but hey -- $3. They don't have to be.
I've always been more interested in thrifting housewares than clothes, to be honest. It just seems like so much work to sort through everything to find the good stuff, and if you shop the clearance racks at Target, say, you can find stuff for thrift prices anyway. But I've sort of realized that thrifting is a good way to get quality clothes that I wouldn't otherwise be able to afford.
I've also been playing around with making my own clothes. I mentioned a while back that I bought two big boxes of fabric from a yard sale for four dollars -- a lot of it is questionable, but it's been perfect for trying new things. Last week, I made a skirt out of denim-ish material. It's a heavier weight that a cotton shirting, but it's not proper twill, either. I didn't use a pattern; I traced around a simple drawstring skirt to get the proper angle for the sides, but it was all pretty freeform after that. It's got a zip in the back (which I did rather well, I have to say), and facings on both the waistband and the bottom hem. It turned out just like I imagined, which I can't say about all my clothing experiments.