Homemade holiday cards have a charm that the store-bought variety just can’t match. This year, give your notes the smell of the season—enliven them with DIY scratch-and-sniff paint. This project is great for younger children, especially if you stick to edible ingredients. Some recipes—like the one on the Crafts for…

Lots of gadgets, like TVs and cars, have exciting announcement events where companies point out impressive new features and stand-out specs. With memory cards, however, things are rarely that exciting. Every new card is a tiny little chip covered in a seemingly random collection of letters and numbers. Just last…