I just got an electrician friend of mine to take a look at the electrical wiring in my basement.  The previous owner did a lot of "do-it-yourself" work, and he did a sloppy job.  That's what happens when you have homeowners who decide to save a few bucks by doing things themselves.  It's fine when they know what they're doing, but some of them simply don't.
This friend of mine is cutting me a deal, doing the work for me at an affordable price.  In return, I'm giving him some tax-free income.  Believe me, I'm thankful.