Vinegar, bleach, baking soda. Do not ever mix bleach and vinegar because it produces chlorine gas. Those 3 things will clean anything. Vinegar will kill mould, bleach will kill mould somewhere that it doesn't matter that you're using bleach, like a bathroom. Bleach will disinfect anything and keep the toilet bowl white. Baking soda is a great scrub for anything at all, and also food safe. They're all cheap, easily watered down, last forever and fine for use around kids and pets (appropriately, anyway, I wouldn't be cleaning out my fish tank or wiping the kid's faces with bleach!)