We've never drawn out our pit design; that's a good idea.
766's pit has a table in the back with the battery chargers under it along with a bin for personal articles (coats, backpacks, purses, etc.). Commonly used tools are on the table next to the programming laptop and there is a chair for the programmer/s. The sides of the pit are lined with bins of materials/marketing give-aways/posters/banners and of course, our beloved red toolbox, which is a chest of drawers and actually accurately labeled this year. Robot goes in the middle of the pit on a cart. Make sure cart fits in pit with room for people!
An idea for battery chargers: We labeled each of our battery chargers and the ends of their wires with either Fire, Water, or Wind (chosen arbitrarily) so we wouldn't mix up which charger light went to which battery. And we always have a strip of masking tape on the floor labeled Charging...Charging...Charged! We just move the charging batteries along the line to wait for their next 30-second battery change.
And send people out to scout whenever the pit fills up or you're testing.

We have a small team, so the problem is more that 766 doesn't have much of a spectator presence in the bleachers.
__________________
"There's no finer engineering than pit engineering." -kaszeta
"Show a girl how to use a wrench, and she'll put those skills to use for a lifetime. Hand it to her and tell her she's probably better off shopping, and she'll clonk you over the head with it, do your pneumatics system, and CAD the robot." -Amanda Morrison

'09