I like to spin fibres that are too short for the skirt but also too beautiful to be used as weaving yarn from a towel. This method is also often recommended for longer fibres, but I don't recommend it. I use fibres that are between 15 and 30 cm long. Anything longer than that goes on the skirt.
The most important thing about this method is the right cloth. It should have a smooth surface and no woven structures to hold the fibres and it should be long. I love the typical linen towels for this work because they are narrow (40 cm) and long (approx. 1 m). If you don't have one of these, you can also use a normal tea towel or sew a flat spun cloth from cotton.
First, I fold the towel so narrowly that my fibres can protrude a little on both sides and lay it on the table. Then I pull the medium-length fibres through my hand card once again to make them parallel.
Now, similar to building a skirt, many fine fibre layers are layered on top of each other. Over the entire length of the towel. Again, the finer the layers, the better you can spin later.
Once all the fibres have been distributed, the towel is rolled up. Now all the fibres are organised and conveniently packed.
I prefer to spin this roll from my lap, but you can also tie the roll to a skirt. The short skirts that are attached directly to the spinning wheel are particularly suitable for this.
First I spin all the fibres from one side, and then I turn the roll over and spin what is still sticking out at the other end. This produces a fine, even yarn that is almost as good as long flax.