I've been remote for almost 2 years now, and I have the same experience. It becomes even more important if you have direct reports in the office because co-work

I've been remote for almost 2 years now, and I have the same experience. It becomes even more important if you have direct reports in the office because co-workers start asking them questions that are more appropriate for you. The other important thing for me is to keep a regular schedule when I'm "on" and then step away from the workspace when I'm "off." Avoid going into the workspace for personal projects. Also as part of my job I make sure to stay in contact with my boss about the things that matter to him like our project plan, release dates, and anything I need from him. Deliberate, open communication is very important. I also find that keeping quality written records is critical too because it's the only way to keep everyone on the same page about what we're working on. And yes, get up, leave the house, and go do something else during the day, every day. I personally go for runs and go to the gym in the early afternoon as a way to be outside. And I spend a lot of time with my girlfriend on weekends too. Neither of us are homebodies when we have free time so that works out very well. Even superficial interactions with other people are enough to fill the cup a little.