Hi Reader: Sometimes, I have a tool, but I just don’t know what to do with it. For instance, I have a friend who swears by pocket brush pens and exclusively draws and writes with one. Infected by her enthusiasm, I picked one up and was horrified by the results. In my hand, it was hard to control, crude, an ink-soaked bludgeon. Years later, I tried it again. Maybe it was the paper, the subject, or just the fact that I had changed with age, but I fell in love with it and now swear by my brush...