Professional Line and Lure Conditioner is a product developed by the one and only Kevin VanDam.  At first, we figured this was just another gimmick product, but we quickly realized that this spray is a must for anyone using fluorocarbon line.  Spray the line and lure conditioner on your spool before each outing, and you will see that your line retains it's original slickness and strength, and becomes much more manageable.  It also works great spraying on silicone jig skirts to keep them from getting sticky.