Three to four car seats -- that's how many car seats you're likely to buy by the time your little one is 10 years old! That's a lot of car seats for just one tiny being, right? Well, what if we told you that you could bypass the infant car seat altogether and buy one -- and ONLY ONE -- car seat!? That's right, mama, all-in-one car seats will grow with your babe and will save you time and money. That's why we are partnering with Diono to give one lucky winner a Radian 3 rXT all-in-one car seat. The Diono car seat is versatile: it allows rear-facing, forward-facing and booster use, compatible with kids up to 120 pounds! The Radian 3 rXT also boasts incredible safety features, like a steel alloy frame, aluminum reinforced sidewalls, energy absorbing EPS foam and a reinforced adjustable head support to keep your little one protected and comfortable. And last but not least, especially for families with multiple kids, its sleek and slim design allows you to fit three across most mid-size cars! Enter below for a chance to win your very own Diono Radian 3 rXT all-in-one car seat (worth $299!).