Going for a walk often helps too. My campus had a nice place to walk and I'd often go for a spin and just relax and think a bit. If you're really stuck or tot

Going for a walk often helps too. My campus had a nice place to walk and I'd often go for a spin and just relax and think a bit. If you're really stuck or totally off track go for a long one. Don't use your phone, experiencing the walk is the point. Watch and walk and think. The idle mind can be very fruitful, it's a shame that we've let attention machines steal this. Not that I'm any better.