Not sure what the solution is for that one. Last summer, I sublet a room in a place with a bunch of annoying college kids, and it was by far the least productive telecommuting situation I've been in.

Headphones definitely help, but roommate noise could be a pain in the ass when I had to be on the phone for conference calls. I ended up taking my laptop to coffee shops a lot.

I guess it all depends on your roommates and your relationships. With musician types, it's a hard balance to find between your right to peace and their right to be loud.

If you want to get extreme, you could try sound-proofing your office or slipping them sedatives.