Retailers love bundles because they hide the real cost of each item. A "starter kit" with two devices and a charger might seem like a steal, but you're paying for extras you might not need. For a gift, ask: does the recipient want to manage multiple devices? Probably not.

Another trick is the "value pack" of single-use disposables. Buying three at once often drops the per-unit price, but it assumes the person wants the same flavor for that long. If they're a flavor explorer, they'll be stuck with three of the same. Better to buy one and let them choose later.

If you're set on a rechargeable, check if it comes with a charging cable in the box. Some don't, and you'll end up buying a USB-C cable separately—that's a hidden cost that eats into the savings.