My wife and I will be there, as always.

A couple of notes:

If you can only make one day, go for Saturday: the best of the heavy athletics, band competitions, and Celtic music are on Saturday. Plan to stay for the concert Saturday night.

Get there early in the morning for good parking. At the end of the day, you can ride down on the shuttle and bring your car up to the mountain for the concert.

Others have mentioned rain gear, but don't forget the sunscreen either!

Bring a folding chair or blanket; seating is primitive in the daytime music venues.

Lots of vendors, with quality ranging from great to junk. Shop around before you buy.

I'd really like to see more XMarkers there; last year we had maybe 5 on the sign-in sheet.