Here is what I know about certain things:
Setting up a landing zone for a helicopter:
if it's night, you can use lights to mark the landing zone, but as soon as the chopper starts to descend, turn all the lights off because the crew has night vision capability and lights are blinding.
make sure nobody scurries across the landing zone as the chopper is coming in - pilot's worst nightmare
station someone by the tail to warn people who might walk into the rotor and structures
Don't look dogs in the eye - lower your eyes and watch their feet if you need to come near them.
Cats and dogs and horses: watch their ears for signs of aggression, fear, or whatever
Setting up Red Cross Shelters:
If shelters are used for up to 24 hours, they are Evacuation Shelters, no cots, just blankets and snacks, about 20 square feet per person, or the size of a single air mattress with a few inches to spare around it
Longer term shelters are General Shelters, usually open for 3 to 5 days.
Allow 40 - 60 square feet of sleeping space per person, about 5 by 8 feet.
Don't set up cots in advance.
Of course all three topics have a lot more to remember, but those are the bits I can reel off the top of my head.
I have another Red Cross Shelter Management class this next weekend, not looking forward to it, but then it will be over.