"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Bottles can pick up germs from your kid's mouth, but they can pick up more as they hit other surfaces too ...

Owning a reusable water bottle is a win-win; it benefits the environment and saves you money. However, due to their often long, skinny openings, water bottles are not easy to keep clean. That's why ...

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