Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...

2,000 years on, the notebook is still a great solution. From Muji to Moleskine, here’s how to choose a notebook that’s right for you. But that doesn’t mean it’s easy to pick a good notebook.

Color screen. Slim and super portable. Great for to-do lists and quick notes. Still a nice amount of space to write on. But not every brainstorm or list needs a full-size page. That's where ReMarkable ...

Contrary to popular belief, graph paper is not just for math class. The best graph paper notebooks are especially helpful for practicing sketches or lettering, bullet journaling, creating ...