Where to keep?

what do you guys keep your tarantulas in? 10 gallon tanks, rubbermaid containers etc...

Depends on what size and what type of tarantula...

I don't have any yet, but I've seen some neat acrylic cages with locks and stuff that I'm sure are easy to make with some simple power tools, glue, and acrylic sheeting. And there's also a guy who makes them at http://www.tarantulacages.com/

I'm planning to get a red knee.