Liz used to hate food shopping so much that she preferred walking into a dentist's office over heading to the grocery store! That was until she became an expert in the art of couponing. Time is money, and for only a minimal amount of work, Liz saves hundreds of dollars at the cash register.

Since her pet peeve is watching people pay full-price for groceries, she's happy to pass on some of her tips:

• Save your coupons until the item goes on sale. Otherwise you're not going to get the best value for your coupons.

• Watch for in-store coupon dispensers and check store websites to see what's on sale.

• Don't wait until you need a product to buy it. You can always use products like batteries, toothpaste, toilet paper -- if you have coupons and they're on sale, buy them! If you wait, you might miss out on the sale or your coupons could expire.

• If you like a product, call the company! Most products have an 800 number or a website. Contact them, tell them you like their product and ask them to send you some coupons.

• Want more coupons? Buy TWO Sunday papers! The extra dollar or so you spend on another paper can add up to much bigger savings at the store.

Rachael's grocery store tip: the unit price. On most labels, the unit price is listed next to the sale price. Compare unit prices between two similar items rather than the size of the packaging. By knowing what the cost of the item is per unit, you'll have a better idea of the value you're getting.