Approved.
Much like paper plates are approved on picnics and the like.
Drinking coffee at home, on the other hand, is a different story. Ceramic all the way. No paper allowed.
This part of being a road warrior I do not miss.
Nice thing back in the day was I had a Sky Club membership and could sit not among the masses and enjoy a drink and a snack in a relatively nice environment...
And of course I ordered a case of .223 from them 'cause I just HAD to go do an inventory...I just keep convincing myself it's a great deal because of no shipping or tax...