To have an original idea i need to take my mind of things.

For small problems i like taking a walk, sometimes talking to someone helps (a dog is great at that, they love the attention, or a guinea pig which will also talk back to you (week week brrr...) just to be able to work at the situation at hand from a different perspective since you have to explain the situation to someone without knowledge about it.

doing something totally different for a while.