Here is a easy way to strip line off your reel.Find a straight stick in your yard,put one end in the chuck of a drill.Tie your tag end off your line to the stick and pull trigger of drill.Easy clean up to just toss stick in the trash.

I made one to the same degree but out of some threaded rod welded a washer to it the a nut and I keep old empty spools and just grab a spool and just put it back on a spool cuz the bottom of the line is usually still good. Then use it for leader material

I save old paper towel tubes, they fit over the chuck of my drill perfectly.

Toilet paper rolls on a drill work well, too.

Only problem is to make sure the line stays on the roll and does not get into the drill.

Pencil in a drill

Berkley line stripper.

Berkley line stripper.

X2. Put the line through the hole and 5 seconds later the reel is stripped.

I use a 12" piece of wooden dowel in a drill. I can strip a bunch of reels with just one piece. I've been using the same piece for over a year. I want to see how big I can get it. I've used pencils before, too, like SirSnookalot mentioned.