Not sure if it has been discussed here or not however if you want extra United miles check the app out. I've picked up a couple thousand extra miles by utilizing the app for everyday purchases. Also you can double dip by using Mileage Plus shopping and paying for the items in your cart with a gift card purchased through MileagePlus X. Good example is if you shop a lot on Amazon you can buy a $100 gift card on the app which will give you your standard 100 miles on your credit card plus an extra 62 miles for using the app. I got an oil change at Jiffy lube and got 5x the miles by paying with the app. Lots of opportunity to gain miles that will add up over time. Like I said sorry if it's been talked about but google didnt show any results on here for it.