I was going to say this exact thing. Have a place for people to come meet up, do their in person things and allow for telecommuting. A blanket in-office or remote-only policy is just inflexible.

Being the IT guy, I have to be in the office a lot of the time, but having 1 or 2 days to focus on projects at home and have no walk-up interruptions is very helpful.

Besides, if I really don't want to work, it doesn't matter if I'm home or at the office. I am a champion at slacking in the office. I can stealthily alt-tab like a motherfucker, and I see you coming long before you can see my screen.

Indeed. Flexible hours should also be added in allowing people to decide with a fair degree of freedom the hours they want to work remotely and the hours they’d be better off at work. My commute times are worst during peak office hours i.e. 8-10am to and 5-7 pm from work. I would just choose to work from 7-10 from home, commute to work and drive back at about 3. That seems fairly balanced to me.

This sounds pretty ideal. I think 1-2 days of remote work per weeks is ideal. Still leaves enough days in office to have the face to face contact with colleagues and communicate directly.