So I'm checking out my emails this morning and one of them says, "XYZ company made a payment to your Paypal account."  I had never heard of XYZ company, but I figured, what the heck.  Do a google search on them.  Turns out I had made a page on their site a couple of years ago and apparently it made a few dollars!

I imagine I had just used the page to create some backlinks but whatever!  Thanks for the dough, bro!