Thought I'd add that the yarns I first started out with as warps are carpet warp (cotton) like this http://www.yarnbarn-ks.com/products.asp?dept=329
and Harrisville yarns (wool) like these http://www.harrisville.com/html/yarns.html
(scroll down a bit to the Classic Line for Weavers, either the shetland or the highland style).
The Harrisville colors are amazingly beautiful. They may feel a bit stiff and wimpy right off the cone, but once washed and dried, it is heavenly! I used it for baby blankets for my kids. You can get a color card from them too. The yarns plump up beautifully.
I only used the cotton once (I'm a wool girl, myself
) but I doubled the strands in every "space" and used single strands in the "holes" and then doubled the weft. I don't have any pics of the finished piece but it did make for a nice fabric. A friend wanted a pink, she said "like the breast cancer pink," shawl/warp. She didn't like wool and really wanted cotton. I found the carpet warp and the ladies at the store I bought it from said it washed up lovely and not stiff and carpet-y at all. They were right. the resulting shawl/wrap (what do you call it?
) was beautiful and soft when all done. But, and its a big but, I was so sick of looking at all that pink on the loom
I kept telling people that it looked like my loom had thrown up Pepto Bismal
I haven't really done much weaving with my own handspun yet, mostly because I only have around 140 yards or so of any given color. I have heard from some people who do not "set" their handspun if they are going to weave with it so that it can "bloom" when the fabric is set. But, I have heard of weavers that always set their handspun too so I guess like all of our fiber pursuits, we can just practice, experiment and do what ever we want
You've made me realize that it has been awhile since I wove on my Harp and maybe I should get my butt in gear