I've been doing it for about four years now, and highly prefer it. I agree with everything that's here, I've made most of these discoveries myself. However, while I do have a dedicated office, I found it more comfortable to work in the living room because there's more light and a better view.

But yes, do act like a professional. I guess if you can actually do a full day's work in a bathrobe then good for you, but I find the daily routine provides valuable structure to the day. I also Skype with my coworkers at least once a day so if I look like hell all the time that would probably not look great.