Today, April, 21st 2016 Jimmy Johns from 11am to 3 pm will be offering $1 sandwiches as part of their customer appreciation day. The only flip side is that you must go in to get this deal you cannot lock in the savings by ordering online or delivery it is only availible for walk-ins only.
Source: https://www.simplemost.com/jimmy-johns-1-sandwiches-customer-appreciation-day/