As part of the promotion, Firehouse Subs is encouraging fans to skip cooking and doing the dishes with a special offer to buy any two subs, get a third sub free for an entire school week.

To take advantage of the offer, simply show the coupon pictured above when placing your order.

While the offer is only available for a limited time, there’s no limit on the number of times you can take advantage of the offer.

Image via Firehouse Subs.