My C-10 is my go to vehicle anyways for transportation, so higher gas prices won't affect it's usage much. My C-10 gets 45 MPG average, compared to 16 MPG or less for my trucks. It'd be nice to have a working car in the 30+ MPG range, but I can't aford a new one so there you go...
Higher gas prices definitely affect how often I use my other transportation options, though, so I find myself avoiding using said options whenever I can. In wintertime though, thanks to my recently implemented no riding in freezing temperatures rule, I have to rely on those more...
I had a bad day on my C-10 with a small patch of black ice that resulted in a trip to the emergency room, and since then I just won't ride in freezing weather of any kind. It just isn't worth taking the chance again, however small it may be.