Ive absolutely killed garage sales over and over again.... i used to work in a pawn shop so i know certain things to look for...
Ive got a early 1980s authentic Gucci handbag for $1 last summer.. its worth about $450 now on ebay.... i dont think anything beats the margin of gain...
But ive also scored some great artwork that is worth some good coin... dunno if anyone has ever heard of bud watson.. but hes a very famous outdoors photographer... i bought one of his originals hand signed in 1972 for $20.... last word was it was worth between $5,000 and $30,000..... im waiting for someone to get back to me to appraise it before i decide what to do with it...