Before you go shopping, you need to establish a budget, make a list of groceries you need and be sure to include the items for which you have coupons. Always check the expiration dates and fine print of the coupons, too. You don't want any nasty surprises in the checkout line. When collecting coupons, organize them in a binder according to expiration date and type of item. This way, you can easily grab coupons you need while making your list.