For added "going to work" authenticity I think you should also catch a Southern train to Gatwick and back so you arrive at your home desk super scratchy and irritable and ready to snap at anyone and everyone.
I worked at home for about 4 years and had a dedicated room with a full office set up. It worked very well for this time but when I moved I had a rethink and decided to move to a coworking space. Each to their own but I find I now prefer getting up and leaving the house and interacting with a...