For those without Global Entry, currently 25 airports (and one cruise port) allow you to breeze through passport and customs control with the Mobile Passport app (https://mobilepassport.us/). Just download, put in some basic details and as soon as you land in the U.S. from an international trip, you just go back into the app and answer a few custom questions.  The app will provide a bar quote receipt (valid for 4 hours) that you can use at customs and immigration in lieu of the traditional paper form and with a designated Mobile Passport lane that is usually much shorter than the regular lines.  Each time you travel, you just need to update the flight numbers.