Apple AirTags are super helpful for keeping track of your keys, backpack, and other frequently misplaced items, but there are some pretty clever things you can do with them beyond finding regularly used stuff. Apple sells its smart trackers — small, circular white discs 1.26 inches in diameter and 0.31 inches thick — in single ($29) and four packs ($99). They are often on sale at Amazon and other online stores. The multipack is the better deal if you need more than one, as it brings the individual AirTag cost down to $24.75 at most. Maybe you only need one, but there are at least 20 ways to... more