Family/Home dynamics around "that time of the month/quarter"

Over the eight years we've been together, my wife has picked up on the fact that my mood and behavior shift dramatically at the end of the month and even more so at the end of a quarter. It's gotten to the point where she meal plans for things I can drag into the office easily and eat from my desk. She's even conditioned my kids so they know there are certain days that "dad needs extra hugs today." How do your family/significant others/friends support your ridiculous lifestyle at "crunch time?"