Many moons ago, my mum (also a yarn craft-er) gave me a nifty little tool called a line maker, for marking where you’re at in a pattern. Intended (I think) for cross-stitch, I realised it was perfect for following where I was at with a weaving draft!
It consists of a metal board with two magnets. One holds the pattern down (the grey strip to the left of the picture) and the other (which is a little ruler) you use for tracking where you are at.
Trying a complicated threading for the first time, this has been an invaluable helper. Thanks mum!