A while back, maybe at a conference, maybe a text book, I saw a way of
doing line charts that made them extremely easy to read. Even with a
heavy amount of data. It was something like doing away with the peaks
and instead accenting a different part of the line. Unfortunately, for
the life of me, I can't remember what the "trick" was. I don't think it
was a Tufte thing, at least I've looked through my trusty books and
haven't found anything...