This week Walgreen's has Breathe Right 'Extra' Nasal Strips 10pack for $4 with Balance Rewards card, with a $4 register reward. You have some options for getting this product better-than-free:
Find the 'Answers at Walgreens cold & flu' booklet, and use the $2/1 coupon (x8/31/13) on pg. 51.
Use the $1.50/1 mq on pg 27 of the allergy guide (x3/31/14):
Use the $1/1 printable from coupons.com:
Pay $2, or $2.50, or $3, get $4 register rewards.