I begin my work on paper with a mechanical pencil I've owned for 12 years. Depending on what the project is I'm working on I move to ink or digital. This workflow has done well for me, it keeps me agile and able to cope with tight deadlines. I'm not cluttered by the need for a massive toolkit, in fact my tool kit, lunch and a bottle of water fit neatly in a bag with room to spare. Needing fewer tools means fewer excuses for why a project isn't done on time, and it is why I have never had a deadline slip.