I started doing this and will never stop! My tub shower are always spotless-so simple. Simple shower and tub cleaner: fill wand half and half. Wet surface and scrub. wow! leave in shower wash while you are already in there - This SO needs to be done in our bathroom.
Rust-Oleum Specialty 1-qt. White Tub and Tile Refinishing Kit
This before and after photo from a customer shows how effective this tub and tile refinishing kit was at restoring an old claw foot bath tub. You can get the same results renewing the look of the tub and tile surfaces in your bathroom.
Best grout cleaner out there and its for carpet! Resolve carpet foam. Spray it on. Leave for 10 min. Scrub it off with a stiff scrub brush! Wha la!! :)) Tip:as you scrub wipe the dirt that comes up off. If you don't it will just soak back in before you get back to mop it off.