Okay, so I walked to the bank. 3.66 miles round trip. It is ASS HOT. What would take me ... oh, 7-10 minutes with my car (depending on lights) took me a little over an hour. My feet now have a few new blisters thanks to my Tevas (i hate my feet sometimes).
I walked. I didn't use gas. I sweated (though that may partly have been because of the heat - 94 now!). I moved.