trying to figure out why youre asking for ideas for YOUR man cave....
ummm...
1. put EVERYTHING in reach
2. have a klaxon that
warns you/interupts her when * "trouble" appears
3. train the shopping/delivery guy/girl

to put stuff where it should be, a stick should help, failing that a gun (potato ones work best, confuses the hell out them)
4. wait for xbox to come out with a colostomy bag then modify it for your chair/cave experience (you KNOW its coming

)
5. STOP WORRYING IF YOUR MAN CAVE LOOKS PRETTY! its a MAN cave!

* includes the missus / family / in-laws / the law

My work here is done... haha work...