Some more speed that is “free”. Stuff I haven’t tried though. Seems like it’s all about golf ball dimples:
Zipp Tangente Clincher Tires
Clincher tires developed in a wind tunnel, featuring golf ball dimples!
Rocket Science Sports Dimpled Water Bottles
Dimples on your water bottles reduce drag!
Nike Swift Spin Time Trial Suit
Nike’s Project Swift incorporates dimpled surfaces on time trial bike suits to reduce drag. Lance Armstrong and the USPS team wore this suit at the Tour de France. Where can I get one?!?!?! Don’t think you can get one anywhere! Read way too much about the science of drag from Bike Tech Review.