So, not exactly bicycle related but I've got some PIF karma to catch up on and you're at your computer anyway.
I've been listing all the old books I won't ever read at Amazon. Then I found a few boxes of books in the paper recycling dumpster and now my neighbors bring me books as well as bikes. It's easier than Ebay. I made about a hundred bucks in December but it's trickled off to less than $10 a month.
Here's my Amazon storefront;
Pick out any book that's less than $5, which is most of them. I'll even ship the first 5 PMs I get for free, after that it's about $2.50 to ship a book. Don't tell Amazon or they'll want money front both of us. There's no bike related books. Sorry.