Rainchecks

I just recently learned this tidbit of information but it's so well worth it!

When a store places their weekly ad they usually have enough of the product for the whole week but if they don't they will issue a raincheck. Sometimes in the ad in the fine print it might say, "quantity limited no rainchecks" but if you go to the store to buy a certain item and it's no longer available you can go to customer service and they will issue you a refund check. So you get the same item when it's back in stock at the sale price. And there is usually no expiration date which means you can use it anytime and by the time you use it there might be coupons out for it and you save even more money.

CVS and RiteAid also issue rainchecks.