I treated myself and bought a 2 pack of dual tip sharpie markers! I didn't realize, until I used my new markers, how bad my old ones were. I have a tendency to want to get every last little bit of use out of them. I am like that with my razors. Oh, is that tmi? New markers make doing these "doodles" so much easier and more fun. I hadn't used the dual tip markers before. It is much easier than dealing with 2 pens. I was watching Millande, on one of her youtube video's, use the dual tips. But then she makes everything look like it has a gentle flow to it.