Read, write, and sketch with the reMarkable true paper tablet. There is no backlight, so (1) it's easy on your eyes, even in bright sunlight and (2) the devices hold a charge for several days. You can store unlimited pages, including PDFs, e-books, and your own hand-written notes. The reMarkable could be the bullet journal or an artist's notebook. Write or sketch on blank, dotted, or gridded pages. The tablet comes with a market, ten marker tips, and a USB cable to charge the device. It's pricey, though, at $600.