The Great American Eclipse website says that between 931,000 and 3.725 million people are expected to travel to view the eclipse on Monday, and if you’re one of those folks, you might be tempted to buy an AirTag to keep track of your belongings. But if a friend or family member has an extra AirTag they aren’t using, you can borrow it and save yourself the money. When Apple released iOS 17 in September, one of the helpful new features it introduced is the ability to share AirTags with up to five people.