Drink liquid meals during tournaments such as Ensure or Boost. No brick in the gut, and a steady fuel supply. Remember that a mask is a poor strainer. Promax Bars have helped me alot, too. Lifting weights helps the competitor - strong muscles move faster and last longer, and the concentration in training is enhanced.
Parking lots are usually quieter than motels for sleeping.
Take ear plugs and bug spray for either. Road trips require more time than planned, but can be quite enjoyable. Or at least they stick in your mind. A lame that seems to have alot of new dead spots showing white light hits in it's middle may be caused by the reel. Do not be afraid to ask for equipment checks during a bout if there are doubts.