As NBC News reports, Starbucks baristas in the U.S. and Canada now accept any reusable cup for any order in the drive-thru or mobile app. If you’re ordering in the Starbucks app, select “Customization” and then “Personal Cup”; you’ll give your cup to the barista at the mobile order pick-up counter when you arrive. In both cases, the barista will have to wait a little longer to start making your drink—since they can’t start a drive-thru order while you’re inching along from the order window to the pick-up window, and they can’t start a mobile order while you’re en route to the store.