Let's talk about the proper use of coupons. I have seen many deals posted around the internet that promote “coupon stacking” and usually involve using a BOGO along with a $ off coupon. I hate to break it to you, but doing this is not the appropriate way to use coupons.
Coupons typically say at the bottom, “Limit one coupon per purchase.” If this coupon is a BOGO or a $/2 coupon, the 'purchase' part means you can only use one coupon per items required to purchase. Some people have taken this phrase to mean that you get to use one coupon per item no matter how many items are required to use the coupon.
Many manufacturers have become aware that some people are using their coupons in ways that were not intended and they have started to change their wording. Lately I have seen coupons say “Limit one coupon per purchase SPECIFIED.” I have also seen, “No other coupons may be used with this coupon.”
Here is a very clear response on the coupon policy from P&G, a large manufacturer and coupon distributor.
Now let's move on to an appropriate way of stacking coupons. You may use 1 manufacturer coupon and 1 store coupon per item. Store coupons differ from manufacturer coupon in that they are distributed by a specific store and can only be redeemed at that store. Manufacturer coupons will state “Manufacturer” on top and store coupons will typically be labeled appropriately as well.
So what if a store has a BOGO sale? You can use a BOGO coupon to get both items free! The store sale is giving you one free and the coupon is giving you the other for free. These are the best deals and you should try to save any BOGO coupons to match them to BOGO store sales.
Here is a specific response regarding this scenario from CVS.
You should try your hardest to make sure you use coupons appropriately. When we (as couponers) attempt to fraud the system, it makes us all look bad. We all know mistakes happen because we are all guilty of messing up at least once if not more. It is just important to learn from those mistakes so we do not do it again. To borrow a phrase from zgirlknits – be a saver, not a cheater.