Please remember IF YOU ARE GIVING THEM AS GIFTS...they ARE NOT TECHNICALLY A GIFT CARD...they are more like a coupon. You must spend $XXX amount in order to receive $XXXX off. You must also follow the 'rules' on the COUPON....alcohol not included, no weekends, etc. etc.
I would not give them as a gift and act like they are a gift card. They are not...they are a coupon. If you give them as a gift...also give a gift card in the amount the person needs to spend...which is usually $25 or more. Just giving one that you spent $2 on is just like paying to give a coupon...that person has to spend $$$ out of pocket to get the benefit of your $2 'gift'.
Sorry for the rant or bursting a balloon for someone but it isn't a gift card/certificate. It is a COUPON for $$$ off a purchase...another thread in the community area said it was like cutting coupons from Sunday paper and giving as gifts.