Well, Dink and I had a small bonfire the other day. Things got a bit, uh, fiery and verging on explosive-ish. The following video is of Dink stirring the fire, which for us meant using a shovel to turn over the ashes and coals. It was fun.
The funny thing is, this fire had almost no wood on it. It mostly consisted of leaves and cardboard (and maybe just a little bit of oil). In any case, it burned very well and we got rid of a lot of cardboard. Definitely worth it!