It starts with a Post-it note scrawled with a reminder. Then a chocolate bar you'll probably eat later. An extra charging cord or two find their way into the mix, along with a laptop, a folder full of ...

Often, paper clutter is much more anxiety-provoking and draining than an overstuffed clothes closet or a desk drawer. To decide what to keep and what to toss, ask: Do you actually need this piece of ...