How did you deal with the exquisite plastic milk tea cup after drinking?

You bought a cup of milk tea with exquisite packaging on the street. How did you deal with the exquisite plastic milk tea cup after drinking?

A: After drinking the exquisitely packaged milk tea, throw the plastic cup into the trash can.
B: After drinking the exquisitely packaged milk tea, take the plastic cup home and wash it as a cold drink cup to drink.