OK, so I'm no genius. I've never managed the gleaming crystal glass towers, the indoor giant waterfalls, I've never survived more than about twenty minutes after realizing there was magma on the map, and I've never breached the aquifer.
That said, I love DF, and I play the hell out of it. I've got no less than 5 copies on my compy (one completely vanilla, one with light mods for cat mouths and butcherable cats and dogs, as well as exotic-trainable beak dogs, one mayday graphics set version, one modded for super-cheatyness for epic construction testing purposes, and one which I use to screw around with various modding ideas) And I've developed, over time, a few odd little behaviors which I do for my own amusement, which have little to no impact on the game:
1. In any area I'm about to enclose in solid walls, I designate a single-tile custom dwarven wine stockpile, so that when the last wall tile is built, and the dwarf who does so is inevitably walled in, I can imagine him screaming "For the love of God, Montressor!" until he starves to death.
2. I replace my bookkeeper's table once per year, so he can have a fresh surface to chisel the records to. The old table, I move to a dedicated records room.
3. I nearly always name my first dwarfs for the days of the week.
4. Once per year, in winter, I cancel all jobs, take a few rooms I've places statues in, and designate them as statue gardens, thus encouraging my fortress to party for Dwarfmas.
So, my question is this: do any of you do similar things? What are they?