Heads up, deal hunters! Best Buy's offering a sweet little discount on their e-gift cards through Cashstar: you can snag a 5% discount on purchases, up to a maximum of $25 off. That means if you buy a $500 gift card, you'll only pay $475. This offer is only valid for a limited time, so don't wait around. Why should you care? Well, if you're planning any Best Buy purchases anyway (holiday gifts, anyone?), this is essentially free money. A 5% discount might not sound like a ton, but it adds up, especially on bigger ticket items. Just remember, there's a limit of one discounted transaction per customer. Now, here's the catch. If you've been holding onto an Amex Offer for Best Buy (like that $250/$25 deal), you're probably better off using *that* instead. Cashstar purchases likely won't trigger the Amex credit. That Amex offer would give you a full 10% discount, which is double the savings. So, weigh your options and happy shopping!