Einstein Bros. BOGO sandwich coupon Jan 172013 If you're new here, you may want to subscribe to our daily email updates. That way, you won't miss a deal. Thanks for visiting! Participating Einstein Bros. restaurants are offering a two-for-one deal on egg sandwiches. The deal, featured on Facebook, is offered to February 10. Print a coupon, or show it on a smartphone. Sorry, the comment form is closed at this time.