In addition to the Chicco code posted below, there is a 20% off all regularly priced items at albeebaby.com code (CYB13). If you want the Chicco Key Fit and a base, it is cheaper to use the 20% off because it applies to the seat and the extra base. The CG25 code only applies to the seat, not the extra base.
Just ordered our car seat, extra base and adapter for the Phil and Teds stroller that I have been saving since my son no longer needed it because I love that stroller so much.