[banjosnotbombs]

Floor time is essential, with exercise and stimulation.
I usually do floor time for anywhere between 1-3 hours. I set it up and take it down everyday. It's really a lot easier than you'd think. You can zip tie grids, so that they fold up and are easily stored.
Their pen is sort of like a 3x3, I set it up so it's more circular(I think like a corral) I set up the pen on laminate(maybe it's vinyl, I dunno) floor, with fleece on top of towels. After floor time I roll up the fleece, and take the towels out underneath. Then I shake off the fleece, and with a wicker broom I brush off the poo and hay - you could do this outside on the lawn or something. Then I just wipe the floor with diluted vinegar.
For floor time on the carpet, you could put down a shower curtain or a plastic sheet, then the towels and fleece ontop.
I hope that gave you some ideas.