[Al Skierkiewicz]

There is a lot of information to be had on the FRC website, documents for mentors are very helpful.
You will want a robot cart at your competitions. Carrying the robot to the field gets old after the second match.
Bring the KOP to your competition. You never know what you will need (or forgot to add to the robot). You can't put on what you don't have.
Inspectors are your friends. They are they to help you or find someone who can. They are tasked with making your weekend fun and memorable for your students. They will explain all the nuances of being at your first event and help you work towards success and a possible award. Inspectors are there to help you compete (and be compliant with the rules) not to prevent you from competing.