I grade papers. I make $2k per semester for two semesters. The work is easy and the perks are good, too. I do maybe 1-2 hours per week average (including test grading). The professor buys lunch and dinner for the graders on test days, so about 5 times per semester. It's not a lot of money, but you'll laugh so hard on test grading days that you won't really care how much you're getting paid.
I would really like to know how to cash in on this $1k/month ebay thing. Hell, I'll take $300/month. What specifically do you purchase? Someone mentioned designer clothing, but I don't know of any warehouses around here that sell designer clothing samples. I live in Tucson, AZ, and it's a college town that only has something like 500,000 people. What are other wise purchases to make and attempt to resell? Do you have to relist an item several times? Do you set up auctions with no reserve or do you do a Buy It Now sort of auction?