I get to miss rush hour traffic! Twice in the past week I had to be out on Northern Virginia traffic during rush hour. I swear, I really had forgotten how bad it can be!
Of course, I guess that you don't have to be a homeschooler to get this benefit, but it is one of the side benefits. I also love being able to shop/run errands during the day rather then in the evenings or on weekends. I have actually gotten a bit spoiled in this regard. I hate crowds and lines!