What: Crest Whitestrips Advanced Seal ($40 for a two-week supply)
Why: I've always been wary about at-home whitening products. I've tried the ultra-intensive one-day trays and ended up with a goopy mess and a whole day wasted watching a kitchen timer. That's why I love the idea of Crest Whitestrips Advanced Seal – they're a riff on the company's classic peel-and-stick whiteners, but with some noticeable upgrades. They stick right to my teeth with such a strong grip I can wear them while showering or drinking water.
A bonus of the super stickiness? I don't taste a hint of icky whitening formula.
Get Yours: drugstore.com (Get $10 off right now with an instant coupon)