I donated $20 in the tip jar at the registration table for JttEotN. Hmm. Proof. I think Sam might have seen me do it, but he was probably distracted.

Actually, technically it was $18 donation (hey, that's pretty close to 10% my point total) + $2 for a button.

I killed two birds with one stone, and I didn't have to part with my lucky $2 bill.