In my work (academic research), I will often get momentarily stumped and not see a good way to proceed. Sometimes this is over something big, but quite often it's over something small which I figure out soon afterwards.
In these moments I've increasingly found myself checking my email, looking at an unrelated website, etc. I don't really need to be checking my email every ten minutes.
Has anyone hit upon a good way to curb this habit in their own work?
Just don't switch to a time-waster in the meantime.