I don't shave much as is. I kind of like being hairy. Next time someone mentiones that it's been a long time since I trimmed my beard or had a hair cut, I'm going to say it is for cancer awareness.

Maybe this could be used for other lapses in grooming as well?

"Hey man, you're getting kind of shaggy. When was the last time you had a haircut?"

"It's for cancer awareness."

"Didn't you wear that same shirt the last three days in a row?"

"It's for diabetes research."

"Pheeeewww! You stink! When was the last time you had a shower?"

"It's to fight childhood obesity."

"My God! Look at your fingernails! You look like a werewolf!"

"I'm making a stand against multiple sclerosis."