Finder's Keeper's

I've always picked up found money. Yes, even the pennies and with no superstitions regarding whether it's heads or tails. Since I moved into the old house, however, I have been stacking up my found money on the dining room mantle. I have enough to buy a Sunday newspaper. And there's even a Chinese coin next to the quarter that I found in, yep, China. Why do I keep found money? No reason, really.....