Er...I'll stop now, because I am not Macklemore. I do have something in common with him, though - we both love a come-up (that means a bargain, apparently).
Thrift shops are funny old places. Long gone are the days when you could waltz in to your local with a fiver in hand, rummage around a bit and emerge with a Mulberry handbag and enough change to treat yourself to a battered sausage from the chippy on the corner. (I know someone who did pretty much exactly this a few years ago). I often check out the second-hand shops around the Kings Road and Pimlico when I'm in London because I'd read that the capital's thrift shops were awash with high end bargains, and indeed they are. They just have price tags to match. I didn't find any bargains in particular, in fact some of the stuff was pretty much what you'd pay for it new. (One example I saw was a second-hand French Connection cardigan for £30. THIRTY POUNDS! For a smelly old cardigan! I mean, ok, it wasn't old, or smelly...but thirty quid is steep for a high street brand.)
Anyway, I'm going off on one a bit. There are still bargains out there if you know where to look, and there is also a growing number of online second-hand stores, meaning no need to wade through rails of stuff - it's all just a keystroke away. Woop! There are loads out there - Oxfam, Ebay, of course - or one of the US sites: Twice and The Real Real are two I've been loving recently. I hate to state the obvious but everything is a one off, so if you see something you like, you have to buy it. HAVE TO. Obviously you take a chance on the condition of the item if you buy online, but in general I've had really good experiences.