I love how soft everything becomes when I wash and block it! Even just the water changes the fiber, and many yarns bloom considerably. I just washed and hung a hank of hanspun yarn, merino with mohair, silk and other sparkly goodness, as well as all my new scarves off the loom.
The water was hot and then warm mostly, I really did not want to felt it, but just ‘set’ it nicely. I sent the Bunny out to replenish the Suave Green Apple hair conditioner supply, which totally softens the fibers. I just add a tablespoonful or so, a couple of squirts to each piece. Less for smaller things. I don’t even rinse it all out, I just squeeze out most of the water in towels.
For this purpose, I brought in several bath sheets (read:gi-hugic) towels to dry everything. They were drenched when I was done. I rolled each scarf up and then stepped on them to remove as much water as I could.
Now they are all in the backyard drying on the drying rack.