I have to agree with DDX, it depends on what you're drinking. Milk bad, water, I sometimes go for a few days with the same water glass, as long as it was empty when I used it last. Bourbon, I go sometimes a week with the same glass, again as long as it was empty … Read more
I use the same cup everyday and I wash it at least once everyday before I use it again. But I'm being told that if I don't wash my cup after each use that I'll get sick? Is this true? I'm not pouring different liquids into the cup.