1. Garage sales - find some gems the owners don't realize the worth of
2. Thrift shops - some unique but often broken/ poor condition items
3. Antique / vintage shops - good finds but very pricey
4. Estate Sales. - THE place to go
You can find unique, one of a kind items, old toys, all kinds of awesome gems. And in turn, make a profit or keep for your own use. Personally I love keeping vintage for these reasons: Most are made in America (a rare thing these days), made to last (even rarer), and have great designs you just don't see anymore.