Or knitting. Exactly! I f ind that if I get into "the zone" on something else, my subconscious will pop up with a delicious idea for the Blank Page of Death.
When I "give up" for the time being, I acknowledge that the idea will strike later. (Typically, it'll interrupt a sound sleep at 3am :> )
I once had an idea strike in the middle of the laundry. I suddenly realized that another dead body would solve my delima. I stopped by my husband's work that afternoon to tell him about it.
After I left his boss said 'your wife is in a better mood'
My husband already focused on what he was doing said absentmindedly 'oh yeah she's always in a better mood when she's killed someone.