In talking about his new memoir, Five Chiefs, Justice Stevens gave the New York Times a great quote. It seems that after decades on the highest Court, Stevens is not inclined to sit by designation:

“I kind of like not having to read a lot of briefs and get reversed by my former colleagues.”

I think you are entitled to not have to read a lot of briefs and get reversed, Justice Stevens. By the way, the memoir sounds fascinating — the premise is his discussion of five Supreme Court chief justices he has worked with and known, as a law clerk, lawyer, judge and justice. Check it out.