> I can filter out 10% of the noise at home, because if my wife is talking or our cats are meowing, it's almost certainly directed at me.

IMO the only advantage of working from home is that you can control all those free variables that make you distracted: E.g. Get a quiet study where you tell your wife, cat(s) etc that you cannot/will not be distracted during work hours. Doing that at work can be tried but depending on the work place, may not be kosher.

I personally prefer working in the library. I have been most productive doing that back in school and sorely miss it.