First, she groomed him and gave him a good vacuuming.
Then, she washed and conditioned his tail, combed it out, braided it, and put it in a tail bag. We're trying to do something to salvage his rather pathetic tail, and this was her suggestion. We'll see how it looks in a couple of months!
It's really wonderful to have someone you trust come out and help look after the boys. Thanks, MC, for all the help!