Gadgets that make life easier in a ton of ways without costing a fortune are my favorites, which is why I love location trackers like Apple’s AirTags. The tiny trackers function like a second pair of eyes, helping my loved ones and me keep tabs on just about anything — suitcases, keys, remotes, pets, parked cars, wandering toddlers, you name it. And right now, you can buy a four-pack for about $79 at Amazon, Best Buy, and Walmart, which factors out to $19.75 a pop. You can also buy a…