I visually inspect and smell it first. If it passes those then it might get reused up to a week before washing especially if it only held water. I am also star

I visually inspect and smell it first. If it passes those then it might get reused up to a week before washing especially if it only held water. I am also starting to see a lot more people with the Stainless Steel insulated cups (i.e. Yeti Tumblers) than water bottles.