Thanks for your ideas.
I never used to see this restriction but like all regulations one place after another adopts it. Lots of work to clean out other folks campfire pits and this doesn't leave a sign that you had a fire.
On the other hand, I'll use a firepit if there is one, but I've been to a few campgrounds now that did not outlaw fires, just had to BYO on the firepit.
I like the idea of the fire being up off the ground, and small is good for warmer nights. We usually don't bring more than a few sticks of firewood as the grandkids only last for a short campfire time. Then they want to go in and watch a DVD.
The post about whether you can live without a campfire made me think of this option and I wondered what else was out there.