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Waterpik Cordless Pulse Rechargeable Portable Water Flosser ($93, originally $100)

This portable water flosser will help you keep your gums and teeth clean in between dental appointments, while also elevating your overall nighttime routine. It's designed with a rechargeable battery, so you never have to worry about it dying — even while traveling. Plus, per the brand, the device can remove up to 99.9 percent of plaque bacteria from treated areas.