Walgreens: Free Balance Bars and Fullbars (4-Day Sale)

Beginning tomorrow, Walgreens is running a four-day sale with two extra freebies in addition to the weekly deals:

Buy 1 Balance Bar at $1.59, Get $1.59 Register Rewards
Buy 2 and use the Buy One, Get One Free coupon from the 10/10 SmartSource insert
Get both free after coupon and Register Rewards

Buy 1 Fullbar at $1.99, Get $1.99 Register Rewards
Free after Register Rewards

 (Thanks to Money Saving Mom!)