I work from home almost exclusively. The only exceptions are when I have to go and do my technicians inventories (mandatory twice a year) or if I have to go visit on of my techs for some reason.
My home office is in my bedroom, unfortunately. I have an L-desk set up with my personal rig on the larger side, and my work setup on the other. My work kit is a laptop in a docking station connected to two 24" screens, wireless keyboard, and a Razer mouse. It's a decent arrangement but my company's VPN only allows sessions up to 8 hours, so I always have to log back in come afternoon.