There are a lot of companies that offer rewards for buying their products. All you do is enter the code found on the item you purchase, and earn free things. Here is a list of some of the reward programs that companies offer:
Pampers Gifts to Grow: Earn points from codes found inside their diapers and wipes. Rewards change periodically, but usually include, toys, gifts cards, photo gifts, and coupons.
Huggies Enjoy the Ride Rewards: Codes are found inside their diaper packs and wipes. You can use your points to enter sweepstakes, instant win games or get coupons and baby items.
My Coke Rewards: Find codes on select coke product caps or packages. Redeem your points for thousands of rewards or enter them in sweepstakes.
Disney Movie Rewards: Collect points from select DVD and Blu-Ray discs, and earn Disney themed gifts, or park tickets and more.
Nature's Made Wellness Advisor: Redeem your points for vitamins, nutrition bars, fitness DVDs and more.
Best Buy Reward Zone: For nearly every dollar you spend, you earn one point. You can redeem your points for gift certificates, and also get member only offers.
Tropicana Rewards: Points found on Tropicana products, redeem them for coupons, discounts or freebies.
Stouffer's Dinner Club: Find points of most Stouffer's products, and redeem them for ring tones, movie tickets, and more.
Contessa Rewards Program: This site is a little different. Instead, you print out a mail-in form from the Contessa website. You send your proofs of purchase (UPC codes) from the Contessa products along with a shipping and handling fee to get your free merchandise. Some of the free items include pans, chopsticks, colanders, and mugs.