I traded in my extended cab Dakota for a Lumina sedan (17 mpg vs. 28 mpg) for my daily driver about 4 years ago. Almost 2 years ago I started carpooling (85 miles/day commute), first with 1 person, now with 2, and looking for another. When my Lumina dies (we're strictly a used vehicle family, and the Lumina has 130k miles) I'll be looking for a 4 cyl. replacement, hopefully in the 35 mpg range.
We traded my wife's S10 blazer (17 mpg) for a Venture minivan (22 mpg). It wasn't a huge gain, but we've got 2 kids and planning on more, so really about the only choice.
We have a full size chevy 4x4 that is a work/hunting truck. It gets used rarely, probably only 100 miles/month. It's paid for and the gas we do burn is offset by not paying delivery fees for various items and hauling away trash/recyclables.
I have a Cub SLT1554 for cutting our 1.3 acre yard. I burn about a gallon/cutting. Not much I can do about that, and gas will be way out of hand before that is unaffordable.
I have a Kubota
L3000 that I use for bushogging, snow clearing, and a million other things. I probably only go through 30-40 gallons of diesel a year. Again, not enough to worry about unless fuel prices triple or quadruple.
Other than that, we have started rationing our trips to town and have cut way back on out of town trips (the kids had more to do with the latter than fuel prices, but the same effect).
I'm interested to know how the fuel prices are affecting others. My carpooling has really limited the financial impact of high fuel prices on our family. My wife has a short commute, so high fuel prices don't affect us on her driving very much.
How are the rest of you coping? Using less fuel or cutting back elsewhere. I think those are the only two options...