All of the advice here is good but it's also convincing me that I really don't want to be working from home long term - I just need a better office environment and a shorter/more pleasant commute.
It's definitely not for everyone. I've been doing it exclusively for three years, and I love the commute (walk upstairs) and the flexibility. I don't like missing out on deskside chats with co-workers. In my ideal world, everyone on my team would be remote, which, as of today, they will be for the next week, maybe longer.