"Guns. Lots of guns." I like to have some kind of exercise. Personally, I find the gym feels like work, but running or biking outdoors doesn't. Set a break

"Guns. Lots of guns." I like to have some kind of exercise. Personally, I find the gym feels like work, but running or biking outdoors doesn't. Set a break timer for like 10 minutes. You don't have to break your train of thought, but at least stand up, stretch, and sit back down. Have a toy side project that you put a few hours into. And get out of town regularly, like kingofspain says. Especially if your startup is at home, the days seamlessly blend into months. Quit work at a reasonable hour. If you're behind, you'll get a full day of work in there, believe me. There will be sprints, of course, but keep the work surgical and focused. Who are you doing a favor to if you burn out and your productivity falls below nominal levels? Of course, these are all suggestions only. What works for one doesn't necessarily work for another.