This is where regular company or team-wide meetups are worthwhile. GitHub do this semi-annually I think, I know Engine Yard do it with their remote support staf

This is where regular company or team-wide meetups are worthwhile. GitHub do this semi-annually I think, I know Engine Yard do it with their remote support staff, and the company I work with does a monthly hack day. Distractions can be overcome if you're willing to work on them. I find with daily standups, it's pretty hard to hide from a lack of progress, but if you don't have these then teaming up with a few colleagues to keep each other accountable is one option. I stay away from TV, movies, etc during work hours, but I do tend to prepare proper meals in my lunch hour, rather than just grabbing whatever junk I can find. It's a good way to combat the extra weight you can gain when you start working from home too.