Today, Dec. 9 only, head over to Amazon.com to score up to 40% off select Britax Car Seats – choose from four different styles. One nice example is this Britax Pioneer G1.1 Harness-2-Booster Car Seat, Beckham on sale for $135.69 (reg. $229.99!). The Pioneer Harness-2-Booster Seat can be used in Harness Mode for children 2 years old and 25 pounds up to 70 pounds or in Booster Mode for children 40 pounds up to 110 pounds!