DH works for BB&B in Customer Service Mgmt- here is his answer:
You can use the coupon for EITHER 1 item costing at least $15, OR several items totaling at least $15.
If you have several items in your purchase and ONE of the items is over $15, and the other items TOTAL more than $15, you can use BOTH coupons in the same transaction. For example:
You have 4 items in your cart. Item 1 is $30. Item 2 is $5. Item 3 is $5. Item 4 is $10. You can use both "$5 off " coupons, one for the $30 item, and the other for the 3 items totaling $20.
A note about expired coupons- technically, the store asks that you use them by the expiration date, but they will make the accomodation for you.