This is a page from my one of my pocket sketchbooks. I started carrying sketchbooks around with me quite a few years ago, just to try and squeeze-in a bit more drawing, and be able to sketch out ideas on the move. It is actually quite surprising just how much you can get done in the 5-10 min intervals when you're waiting for trains, or trying to avoid eye-contact with people on the tube. I feel like I've reclaimed hundreds of hours, that I'd probably just have wasted otherwise: playing with my phone, or pretending to read billboards.