Sound Exchange has been slanging rare and collectible records to Houston's stone-cold junkies for years now. And those junkies have good reason to be repeat customers; the incredibly fresh selection and well-priced bins of '60s psychedelic music and soul are hard to beat. And the two owners are courteous enough — or fiendish enough — to regularly slip you some hip sounds from their secret stash. You'll most likely leave the place as high as can be with a fat sack of vinyl under your arm and a little coin left over in your wallet.