When I waited tables I would save all of my change for the cruise. I pretty much live cashless now though. The rounding up the bank card purchases would work for me. I use to roll all of my coins and take them to work, it would take me forever. I had to pay taxes this year on my return instead of getting a refund. I wrote that money off as gone. I got it all back with that stimulus thing they did. So I used that for my cruise. I figure if something was going to get stimulated, it might as well be me.