Why is the Compleat Cup a great piece of design?

Numerous initiatives are going on out there to make the ubiquitous coffee cup greener and whilst we all get our heads round the habit of a reusable cup, here’s neat solution called Compleat Cup from an architect in the US who developed this idea in his spare time.

Better in every respect, it feels like up-take could be smooth as it isn’t just one party that benefits:

I’ll drink to that.

More about the Compleat Cup on Fast Company.