I already have cans. I thought to buy an extra for a neighbor who couldn't find any at any of the stores.
We bought a hybrid Toyota Prius a few years ago. (Not because we are enviro-whackos, but because my hubby is a techno geek and fell in love with the Prius.)
Anyway, I'm really glad we have it right now. We also have a mini-van, and it is really expensive to run.
True Value said that was the number one product sold.....normal is 3000 a month, this month 17000 this week