Grubhub Promotion 1: $5 off 15 using code: SUNDAYSWIRL, working for pick up.
Grubhub Promotion 2: Bank of America offers 1 year of free Grubhub+ membership. The Register Link is here. If you are already a member, you can still click the link and get 5 off 15 for 3 times!
Actually, Amazon Primer member has the same deal: Free Grubhub Plus Membership for Amazon Primer, if you don’t have Bank of America card.