As more and more printable coupons are becoming available online, it is getting confusing as to how they can be used at each store. One of my favorite websites, Hey It's Free!, recently published an awesome list that summarizes the Internet coupon policies of all the major grocers and other retailers. You may want to print out the policies of the stores you shop at and carry it with you when you shop so that if there's any question you can be armed with the facts.
I've mentioned Hey It's Free! before. If you haven't checked it out before, now's the time. I've signed up for their emails so I don't even have to check their website to be notified of all the great freebies out there.