Offermatic is a free online service that helps people save money automatically through your credit or debit card. Offermatic has raised $4.5 million in Series A investment led by Kleiner Perkins Caufield & Byers, SV Angel investor Ron Conway, former AdMob CEO Omar Hamoui, and early execs from Facebook/Mint.com. Hamoui will be joining the board of directors. Offermatic launched in beta in December 2010. By linking existing credit cards and debit cards to Offermatic, people can receive discounts on products and services without having to redeem coupons.