Anyone Use Line Butter?

Does anyone use any type of line treatment? If so what type and how do you like it?

I use a spray called Ardent Line Butter. Works great! I get it at Acadamey!

I use Kevin Van Dam's Line and Lure Conditioner. It's about $12 for a good size bottle. Bass Pro Shops carry it and you can also order it on line. Works great! Use it every time I fish.