Taco Bell offers a $5 Taco Bell gift card for free with every $10 in Taco Bell gift cards purchased. (It can be delivered free via email, or you can opt for regular mail with $2.40 for shipping. You can also buy gift cards in-store.) That's the first gift card promo we've seen from Taco Bell. The bonus gift card is redeemable online only and only for food and drink. Deal ends December 24.