Deep cyclic breathing is important and seems to help reduce heart rate drift after a few hours of riding.
*deep inhale/deep exhale * regular breath*regular breath * deep inhale/deep exhale
Coconut oil and almond lotion is an amazing chamois cream. Also a delicious combination if you wanted to make a candy bar.
Two naps and a box of mini-cornettos will really give you the energy to have a good ride.
The draft from passing cars probably has the biggest effect on average speed.