Walgreens is offering up a new Buy 2 Get 1 FREE Pringles Coupon! Simply log in and load the coupon on to your balance rewards card. To find the coupon easier, just search for ''pringles''. Walgreens have these on sale for 2 for $3 or $1.79 each - which makes it just $1 each. This coupon is valid through February 1st.