If you love sub sandwiches, you’ll definitely want to sink your teeth into this deal. Jimmy John’s is offering $1 subs on April 21 from 11 a.m. to 3 p.m. at participating locations, as part of its Customer Appreciation Day. Customers can choose from subs #1 to #6 on the menu, as well as the JJBLT sub. Limit one per customer. (You must be present, so no picking up orders for friends or co-workers.) Plus, the deal is only good in-store — no delivery, pickup or drive-through orders allowed.