You can print a $1/1 Kelloggs Fiber Plus Cereal coupon. The coupon I just printed expires in 14 Days, so it has a quick expiration date. Kellogg’s is also offering you a chance to try their Fiber plus Cereal for free. Simply purchase a especially marked box of Fiber Plus cereal (use this $1/1 printable). Then mail in your receipt with this rebate form and you will get back the cost of the box of cereal.