Walgreens: FREE Splenda with Fiber December 16, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. Walgreens currently has Splenda products on sale this week for $2.99. However, there’s a price drop through January 1 on Splenda with Fiber, so you’ll have plenty of time to stock up! Splenda with Fiber (80 count), $2.99 Use the $2/1 coupon from here Use the $1/1 Walgreens coupon from the winter issue of Diabetes and You magazine Final cost: FREE!