My friends and I have like six servers up...
In our first server I was busy building a massive rail system to circle our rather large collection of castles, warehouses, underground homes and towers. It turned out well. I'm also starting up a...well, lets be frank, big fucking underwater glass tunnel to another island we have a small home on (it's got some mineral rich caves).
In another server, I'm not too sure what to do next...I've built a decent library up and filled it with paintings, but it's only half done. My high floating lapis lazuli block house looks pretty good though, as does the art gallery I built behind it, and the "thinking room", which is essentially a hollowed out two-layer glass cube with lava between the two layers and a chair, bookshelves and paintings inside.
In yet ANOTHER server, we're doing things entirely without any sot of OP usage and so far we've built two underground homes (nothing special with them,) and are getting ready to build a nice home on a big overhang.
Oh, and in single player I just finished making a large empty room that I promptly decorated with paintings, wool, lapis blocks and set up a nice double bed.
Phew.
