Ya'll crack me up!
I don't want to paint the inside, because I do want to use again for swf in the future. Books might sratch it, though I do need another bookcase...
I'm not sure about using it for anything alive...I'm limited on time, and we'll be moving in a year so I'd hate to set somethign up only to take it down and move it. Though I'd love to have a few little turtles. I have issues keeping plants alive. The only plant still alive is a dam ivy (?) from my husband's step-grandmother's funeral. Stupid thing won't die.
weekly water changes? What are they? I'm lucky if one gets done every 6 months...then again, that's why I have high nitrates at the moment.

Luckly I only have two fish who are hardy.
No room for it to be a great sump/fuge, the tank hardly fits in the office. (then I'd need something to do with an empty stand in my living room).
"cacti and you could make an oasis." That's an idea, cacti don't need much maintance....ummmm....
snake!! Husband tried that with me once, somehow I got two mice out of the deal and he never got a snake.
Ant farm- that would be my shower (ugh, can't keep the ants out, too much rain). Aunt farm...do we really want to breed them?
Lots of candles..and pretend it's a fireplace. Now there's an idea. Instead of us laying on the couch watching the fish, we could watch the fire.
beanie babies...ummm...I have a sea horse, octpus and snail(they all match). We have some dectorive whatever you call it that I don't want in the 75gl, I could put that in there. Too bad I gave away my castle I had in the fresh water tank.
Keep them coming if you have any more, these are good.
Thanks!