Who reuses tea bags? Come on now...
At my place used tea bags are put in a container of water for use as a hair rinse post shampoo and then winds up in the compost pail. Seems to work well getting rid of shampoo scalp residue and free of chemicals found in commercial conditioners.
I've been known to, for the second cup. I also save coffee grounds to sprinkle on my azaleas so the deer won't eat them. The local starbucks once had a manager who would bag up pounds of coffee grounds for gardeners, since there are a lot of deer around here. That's organic recycling. But used mouthwash? No way!
I do...easily .....since tea is for coloring water as I see it and I like it very light. Same with coffee...very very light.