> There is still dust setteling on things, right now dust is setteling inside your right-side-up cups. And you know what is in dust don't you? Dirt, shedded skin cells (human and animal) bits of insects, bacteria, pollen, hair, and mold spores.

My guess is that we breathe in more of this stuff than would ever be consumed by regularly used right-side-up stored glasses.

S "Don't personally care which way they're stored." am