I stand up, look away from any screen, sometimes walk, and "process it all".

Meaning: observe as my thoughts flow until they slow down a bit. Regain my balance. That's all. This brings ideas, sometimes even creative ideas, without any particular effort. Occasionally the conclusion pops up that for the last two hours I missed the forest for the trees.

If I'm in the office and someone asks me what's going on I just respond "The work.", because it's kinda true.