[waterheater]

Yes, because I get gas when I'm already out running an errand. If I'm below a quarter-tank, I go to the cheapest gas station around me (it's not a Costco). I never wait for gas, and it takes me literally three minutes to fill up. I then don't think about refueling for around two weeks.

[frumper]

It sounds like you don't drive much if you only use 3/4 of a tank in two weeks. You wouldn't have to charge much either.