Something I hadn't gotten around to trying in all my propagation adventures is succulents, although I've heard they can be pretty easy to do. The basic process is to remove an offset or a leaf, leave it in the open air for a few days to callus over, and then place it to root on a well-draining medium. When I was at the IPPS conference last year I even heard a speaker talk about rooting sedums for green roofs by just chopping up a bunch of plants, sprinkling the pieces over a layer of soil and then, once they had rooted, they could roll it all up like sod and transplant it.
Working on a much smaller scale than that, I pulled off a handful of little "beans" from my Pork & Beans sedum plants to try rooting them. I left them to callus for about five days, then today I potted them up in a 50/50 mix of perlite and potting mix. I moistened them just a bit and covered the pot with plastic wrap. They should start to root within a couple weeks.