Aside from, to borrow from Michaleen O'Flynn, having a pint with friends to 'talk a little treason'. It's the lack of frantic activity on a personal level.
For more than twenty years the Wednesday before Med-Fair meant loading the big stuff* in the truck so I could drive it down Thursday morning for setup. Today I helped friend the gunsmith with some things, came home and ate dinner, and now I'm comfortably browsing the inerwebs a bit instead of doing heavy lifting and checking the list.
It's really odd.
*Anvil, stump, forge, coal bucket(full) and water bucket(empty), a bunch of steel of various sizes/shapes/types, one damned heavy toolbox and so on.