My husband scheduled us for MK last Saturday b/c of the Unofficial Guide's recommendation and, when I asked people here about it, everyone said "NO! Don't go on Saturday!" I expected it to be horrible but it was, in fact, much lighter than it was the previous Monday. It did get more crowded as the day went on, as per usual, but it was still better than I expected it to be. We were there at opening and got to run on and off Splash and Thunder Mountains for the first hour they were open (we were taking turns strolling the baby); at 3pm (parade time) I walked right onto Pirates and the CM said "just sit anywhere!" So, I don't think Saturdays are as bad as we thought. I used to be a local (see sig) and we sure went on Saturdays, but maybe the idea that people are travelling is correct?