Do you have CLEAN shower grout? If so...
My question is, IF you have clean shower grout (no discolorations, mildew, or build up), how often do you clean it and what is the routine? I basically want to do it only as often as necessary, but want to really make sure I never let it go too long to have any difficult to fix issues. I have a few bathrooms that will have new white subway tile with light gray grout, and a master shower that will have white marble with light gray grout. I'm especially worried about the marble since harsh cleaning agents are not allowed.
I'd love to know how old your grout is, what color, sanded or unsanded grout, what cleaning products you use, whether you wipe it dry after each shower, and how intensive your scrubbing is when you actually scrub.