When I'm at home, I almost always drink tea, coffee, etc...out of a glass mug. Just today, I read something about how drinking out hot beverages out of plastic mugs was bad for you. Is it? What do you guys think? I usually dump stuff in a plastic mug if I'm goign somewhere, but if it's bad for you, I'm gonna pay for the extra cost for a stainless steel travel mug, or some other alternative. What do y'all think?