love the go with the flow doodle mentality. I call it "Randomness". It's a great practice to help you start and gives a great feeling of complete freedom, and that's what doodlin' for me mostly is about. I sometimes use this randomness to create peace of mind, new ideas, creative flow, clearity, vision, dreams or great art! :)
Part of a personal project I'm working on right now, to experiment with unfamiliar art styles and practice lettering skills by drawing animals. This is my first foray into cubism-inspired artwork (definitely don't claim to be an expert on actual cubism)--it was way more fun than I expected! I think I'll be trying some more...