OK, I guess a lot of us are pretty frugal folks, we're all semi-anonymous here, so fess up- what is the cheapest thing you do?
I will start off - when i can't squeeze any more toothpaste out of the tube, I cut it into pieces and get at least 6 more times out of it by running my brush inside the tube (no I do not share my bathroom or toothpaste with any one else, so it's sanitary!)
OK, your turn!