As one of its daily deals, Amazon offers Prime members the Graco Highback TurboBooster Car Seat in four colors (Go Green pictured) for $28.99 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise, it adds $12.34.) That's a buck under our December mention and the best price we've seen. (It's a current low by $21.) It's designed for children from 30 lbs. to 100 lbs. and from 38" to 57" tall. It features an adjustable headrest, open-loops belt guide, padded armrests, and cup holder. Deal ends today.