My household growing up was drowning in thermoses and water bottles. In large part due to having two kids in competitive high school sports and one in competitive highschool arts and sciences.

It's one thing to have a bunch of kids who need and use water bottles on the regular, but it's entirely another thing when all these institutions simultaneously declared, "Trophies? Ribbons? Placards? Those utter wastes of space? We should be giving these kids useful prizes for winning their events!" Cue racking up four or five cheap, flimsy water bottles and other assorted crap per kid per year...