But before I go to bed...
DR Dan-the-Man - You're "pre-opening night breakdown" is sort of similar to what my piano teacher in college would recommend to me for my "day of recital/major performance" routine.
She would tell me to kick and scream, run around the grounds of the Capitol building (in Richmond), yell for a few minutes in my bathroom... Just something vigorous - that would not hurt my hands - but help to get some of the adrenaline out of my system early in the day. And then spend the afternoon doing something very calming and peaceful - I would usually clean my apartment while listening to the OBC of Sunday in the Park with George. I still basically follow the same routine. I don't get too crazy with the vigorous activity early on, but, for instance, this morning, I ended up taking a nice three-mile walk while I was getting errands done.