Thrift stores usually have tons of awesome things. A few years ago I found a green (bright green!!!) London Fog trench coat for 14 dollars. It's water proof AND had a Starbucks gift card in the pocket for 17 dollars.
As far as other clothes, I'll be watching this forum for ideas.
Sweeeet! I treasure hunt at thrift stores all
the time and I've found some great deals but I think that one might take the cake!