Portillo's now has a printable $5 off $15 coupon with no app required good through 1/1/17. This is in addition to their $5 off $15 coupon for the first app purchase with their promo code: HOTDOG. This coupon can also be used with the app. The code is: HOLIDAY.
To receive regular e-mail promotions from Portillo's such as free cake on your birthday, sign up for e-mails on their site.