BYOC! Bring your own cup!
We always did, the breakrooms had a small kitchen.
Use your cup, clean it and hang it. Worked well.
One minor issue in many years, someone traded cups with me!
In the early 90’s when the Bulls were HOT, I had an MJ cup from Dunkin Donuts, nothing special, the photo wears off in a few weeks but it was free.
Getting coffee for the ride home one evening and my cup is gone??? A different but similar cup is in its place?
The replacement is of far superior build quality.
In fact, the same cup is in my hand right now, after all the many years! Still works well.
We did this at the fire stations that I worked at. At a larger station a guy got really mad because people kept using his mug. So one day he called everyone in the station into the kitchen even the battalion chief and his aide. He took his mug down from the hook it was hanging on; he unzipped his pants, pulled his dick out and rubbed it on the rim of the mug. Then he said that anyone who wanted to use his mug was free to do so.