Make sure you pick up all the stakes. These stakes should be painted international orange, or tied with a bright ribbon, as otherwise they are guaranteed to get lost. I wouldn't want to be on the next lawn-mower that hits one. From long years of experience, the time spent arguing about where the field should be placed usually equals the time spent staking and marking. Have someone around who can make executive decisions.
Referees hate sloppy work and lines that are missing and out of place.
And don't forget the beer when you're done.