Dave;
I agree with you about the smell left on wool after coming back from the dry cleaners. I have several hunting wool items that are dry clean only. I have a ten foot overhang running the full length of my barn where I store the tractor implements. When I get the wool clothes back from the cleaners I take the plastic off and hang them for a couple of weeks under the overhang where air can circulate around them. This seems to solve the problem with dry cleaning odors. Just a suggestion that works for me.
Joe