I use diluted bleach (like 10:1) from a spray bottle. I spray the tubs down, let them sit for a couple minutes, then take them outside and hose out.
For the two snakes in tanks (adult corn in a 30g breeder & 2 yr old Braz. Rainbow boa in a 55 gal) I remove everything, and either use the Natural Chemistry spray or bleach, or both depending on how I'm feeling that day. I also keep Clorox Anywhere Spray handy, and sometimes use that.