Good stuff
I have used Cortland's Fly Line Cleaner Lubricant for over 20 years. I like the convenience of the half-dollar-sized pads and slim container. Our warm-water streams here in Kentucky often have a little haze on the water (dust, lots of pollen, etc) so after every trip I run the fished parts of the line and leader through these easy to use pads. Keeps the lines casting like new.