Interesting poll, but at first I thought you meant "where" as in what location. That's a very interesting question that I'd like to hear answered. Especially if you're freelance, on your own, remote, or otherwise don't have an office to go to.
What I've noticed is that I can't seem to work in the same physical spot for more than 2 months in a row or so. After that all my creativity seems to drain out and I can't get anything done. As soon as I move to another spot, I'm back in business.
So I find myself hopping every 2-3 months between different coffee shops, tea shops, restaurants and coworking spaces in my area. I always wondered if anybody else has the same thing.
Sorry, this is kinda off-topic. Maybe I should make a work-location poll.