I'll usually machine wash it, but inside out, in a sweater bag, and lay flat to dry. For some items I'll only buy washable yarn - like socks. I love

to knit socks, but I don't like to hand wash socks.
As Dr. McCoy would say,
"Darn it Jim, I'm a knitter, not a laundress!"
Hurray for superwash wool!
Mary