I DIDN' KNOW I WOULD HAVE ANYTHING IN COMMON WITH MOTHER TERESA BUT THIS WAS ON THE WALL OF HER ROOM AND IT CALLS US TO DO THINGS WHEN WE DON'T FEEL LIKE IT.  IT'S A RELIGIOUS "JUST DO IT"

Pros: HAVE IT ON MY WALL BY MY BED. IT GETS ME GOING I THE MORNING 
Cons: MOTHER TERESA? ARE YOU KIDDING?