I think I'll buy a beater car or on craigslist for $500ish, spend a couple hundred fixing it and detailing it (myself), and reselling it for double. My hope is to turn it around for less than $750 out of pocket, and at max 10 hours of work. $250+ profit for 6-8hrs of work is my hope, but finding the right project is the first step.

Second option is to do the same with a broken macbook/macbook pro. Find one with a busted screen or similar, replace the components and double my money with a couple hours of work. Do it a few times a year, and turn $1000 in to $3000-$3500. Not enough to live on, but it's extra ammo/gun money....

lastly, garage sales/flea market bargains. Buy low sell high. Need I say more?