my best find has been a bunch of old coins! The unit was ok looking kind of junkie. stuff tossed around beat up boxes etc.. not a very attractive unit but it had a lawn mower in it and I knew someone who needed one so I got the unit for $90. Well in the back of the unit in the drawer of a nightstand was a cigar box slap full of old collectible coins!!!  Took a lot of time figuring out what was worth what and how and who to sell them to but I think I totalled $6,780 or so on those coins! yea that was a good day!