There are several new changes to the Walgreens coupon policy. This is the biggest one I can see 🙁 You can check out their complete and updated coupon policy HERE.
When purchasing multiple items, Walgreens accepts multiple identical coupons for multiple qualifying items as long as there is sufficient stock to satisfy other customers, unless a limit is specified. Management reserves the right to limit the quantity of items purchased. Customer and employee purchases of excessive quantities of advertised items is not permitted. An excessive quantity is any quantity above and beyond normal household usage.