Travel sketching is a way of recording. I also use it as a break from rushing around, or making a boring commute more fun. I usually carry a sketchbook with me while traveling. Occasionally I will draw on iPad Pro if I have more time. But most of the time, I just sketch with a Gel Ink Pen on my sketchbook.
I recently discovered an online community call the Urban Sketchers, where people from all over the world share sketches and organize meetups to draw together.