For every single person who does that, I see 100s who do nothing different.
Just sayin’.
I myself am moving this summer to an area where I will be a 2 minute bike ride from the store, and will be buying as much produce as possible from the year round farmers market with all locally grown produce. Currently I drive like a grandpa. Light on the throttle is the trick. I see at or above EPA mileage on my car.
I’m not going to bitch about the price though, as it cannot be changed, but I will do what I can to make that price go further.