Week before vacation

What is it about the week before a vacation? The energy level goes way up as if some part of us is already on vacation. Wittingly or unwittingly, I always seem to schedule a million things to do and almost make it like I have to go on vacation to recover from the crazy week preceding it. Interviews, school board meeting, practices for my kids, and all that goes with being a principal normally is enough to send me over the edge. Our memory is short when it comes to year to year for this type of thing. I for one never learn.