I find process interesting. Sometimes I do it pencil first before going straight for the expensive paper. Sometimes I go straight the good stuff and it works first go. Sometimes I do several additions until giving up on it and moving on to something else. I think it's important to know when to walk away from something that is not working, other wise it can cost you a lot of wasted time. An efficient working system is what I'm talking about. Hard to find what works but after doing it on a regular basis I think it's easier to find something that works.