Really. I have found it like using a $5 pharmacy coupon. If you return the item, they lose it. Maybe it just doesn't return immediately so I've never seen it returned and have had to listen to complaints about losing it. I was going to use my 2.36 today but one of the items is clothing that I may need to return if I don't like the fit so I'll save it to use on food or something I know I won't return.