Re: How do you identify your lines?
Steve, welcome to the board.
I think this is an old Lefty Kreh tip and it works really well.
Use a permanent marker and draw short dashes for each "weight" and long dashes for a 5 weight increment)
so for example a
3 weight would have 3 short dashes
a 5 weight would have one long dash
a 7 weight would have one long dash and 2 short ones
a 10 weight would have 2 long dashes
a 12 weight would have two long dashes and two short dashes etc
You can put these on both ends of the fly line so you can see what you have on a reel, or if it's stored you can tell by looking at the back end.