Grubhub.com takes $10 off orders of $10.01 or more when you use the most recent version of their iPhone or Android app to place your order. This must be your first order using the app in order to qualify. Both apps are available free. Grubhub is a restaurant delivery ordering service available in major cities like Chicago, New York, LA, and Boston (check their website to see if it is available in your city). This offer is good through 11/1.