Yesterday in the comment section Grace said:"I am having a problem getting my yarn fluffy like yours ...... I want to make some sock yarn for me so i can learn to knit socks. I think my own yarn is way to thin.. any ideas on plumping it?"
Please know that I am not an authority on spinning, but I have spun for some ten years. Here's what I have learned about "plumping yarn." If by this you mean making it thicker, I would suggest making a three ply. I've done this with the yarn you see from my last post by Navajo plying the singles I created. But making a three ply using three singles is perhaps the best way to make a plumper or more rounded yarn especially for making socks. For durability I would spin each singles worsted and not woolen since the latter will produce a sock yarn that is less durable.
I have made two ply sock yarns as well, and I very much like a wool/mohair blend. I also have heard that others have made them out of Romney or Border Leicester. I avoid Merino unless it's a superwash Merino. Short fibers like Merino can pill when knitted up as socks. Although if spun properly, even Merino can make a great sock yarn....think Koigu yarn.
Jeannine Bakriges , who is from Vermont, has a great post on her website about spinning sock yarn, but be sure to scroll down the page. I took a workshop with her at WEBS last fall which was very helpful in learning how to spin a thicker singles.
I also noticed that Holly Shaltz has a good description of how to spin sock yarn.
Check out Elizabeth's Saturday Spin In. Some wonderful fiber there!!!Spin on!!!