how to clean canvas bags

  1. there are lots of threads about cleaning leather bags but what about bags that are made from canvas? does anyone know if i can use Apple Suede and Nubuck Cleaner for canvas bags?
  2. I know for Coach ones they recommend that you clean the canvas with ivory soap and water and rub it with a washtowel. And for suede they have a brush and cleaning kit. But other than that I really have no idea so I usually don't use my bags a whole lot bc I'm so paranoid about getting them getting dirty!