Always Get a Raincheck!
Some stores will give you a raincheck if the product is out of stock.
For example the raincheck below for Arm & Hammer laundry soap was on sale for $2 at Loblaws banner stores but at that price, they ran out quickly. This was in 2019. How times have changed!
Also, they only had limited stock of the type that the $1.50 coupon worked on, and that sold out fast.
With the coupon, the A&H was only $.50 a jug.