Every dwarf gets their own room, complete with waterfall, well, one open square of magma for heating water/the room, their own statue garden, an engraved wall behind their bed 5 tiles long for amazing frescoes. Their room is also their office/dining room. mingling is discouraged due to the dangerous living conditions. (I WAS going to do magma falls as well, but the dwarves didn't care for that much, as it tended to cause a high mortality rate.) All beds are made out of nethercaps if possible if the biome is hot/scorching.
The workshops are built for the dwarf who will use them, and have their own explicit stockpiles for materials to be used. Raw materials are stored on every other floor, where the plumbing goes. Bins/barrels are made from only colored wood, to keep my stockpiles colorful. Each level is a roughly circular shape, even if it's a tower above ground. once the main fort is completed, phase 2 is designing the labyrinth around it so that enemies never get in, and wander around through different trapped halls based on their speed. Most halls wrap to the entrance of the labyrinth, so a monster that was fast but got wounded gets to tour again, but see a different part of the labyrinth. It contains traps to maim, rooms of kittens, one way doors, rooms of treasure, and many other fun surprises!
Next fort (probably starting today) will be just the labyrinth. Totally wasteful, not efficient, but fun to watch enemies get lost while mingling with my dwarves.