Searched the archives and this seemed to be the closest-related to what follows. A local ad:

I am a professional house cleaner. I use all non-toxic cleaners, and I have great references. I'm looking for someone who wants to trade house cleanings for banjo lessons for my husband. He bought a banjo about 2 years ago, and hasn't even spent 10 hours on it. It kills me, because I know he loves the banjo, and would be thrilled to learn how to play it. He LOVES bluegrass. He is left handed and has a left handed banjo. I hope this isn't a challenge. For a good teacher, I'm sure it isn't. It will not be regular scheduled lessons because he travels for work, but I'm guessing it will be about 2 or 3 times a month. I would like to clean while you teach. I will do whatever you want me to do, including dishes and laundry, organizing, whatever. It is my time in exchange for yours. This is a gift for my husband. I really hope I can find someone!

http://austin.craigslist.org/bar/326435020.html