Now I have not yet done a competition, but I read the following on here.
Do a practice run that will simulate the competition. Before you do that put out everything you think you will need to take with you in a staging area. Make a list of everything in the staging area. Check the items off the list as you use them. If you have to go get something that wasn't in the staging area add it to the list. Anything you don't end up using you probably don't need. The items checked off on the list will make up our packing list for the competition.
When I read this it made total sense to me and I will follow this advice when I manage to compete for the first time.
Good luck and let us know how things are going periodically.
Weber Performer w/smokenator
When all else fails just ask yourself, WWGALD???