Last year at the camp site I was sharing with @Sliverfly I was watching him getting every ready for the next day of albacore he was laying out the line on his 12wt and wiping it down with a paper towel. I asked him what he was doing and he said cleaning his line. He had a line dressing on the paper towel. I asked him if I could use a little of his dressing and I couldn’t believe how much filth came off my line. I bought some SA line cleaner, and now I clean my lines at least every year at the start of the season. The first time I cleaned my line at home I removed it from my reel and put it into a pot of warm water with a small amount of cleaner and let it soak for about 10 minute. When I pulled it out of the pot it was a mess I attached it to my reel and with a wet paper towel I spent way too much time fighting with the mess I had made reeling it back on my reel while pulling it through the wet towel. Now I just leave my fly line attached to the reel and lay it in the pot of warm water with the cleaner. After a 10 minute soak I reel it back on my reel while pulling it through a wet paper towel. Way easier. I’m not sure it helps catch fish but when you get into some albacore with the blood and the slime on the deck you can’t help but get a filthy line. So cleaning my salt water lines I will keep doing.