You know the holidays are just around the corner, when stores start promoting gift cards. We just spotted this one from Jamba Juice. When you purchase a $25 gift card, you get a FREE 16-ounce smoothie of your choice on the spot. (If you want a larger size, you can do so at an additional cost.) The promo ends January 2, 2014, and is valid at participating locations. And who says you have to give the gift card as a gift? If you’re a Jamba Juice regular, it makes sense to “pre-pay” for your smoothies and get a free one in the process. It’s always about saving a buck, whenever you can.