The best take-away coffee cup is the one you already have
I started using used jars in lieu of plastic or cardboard take-away cups a couple years ago. I occasionally get weird looks for sipping from a mayonnaise jar, but I know you people will understand. It's arguably more functional than my wife's keepcup, because this lid will. Not. Leak. Reduce and reuse! I'll just wash this out and use it again and again.
I started using used jars in lieu of plastic or cardboard take-away cups a couple years ago. I occasionally get weird looks for sipping from a mayonnaise jar, but I know you people will understand. It's arguably more functional than my wife's keepcup, because this lid will. Not. Leak. Reduce and reuse! I'll just wash this out and use it again and again.