Best Way to clean your tub. Period. Make a paste of Borax for that grimy tub and tile or try swimming pool tile cleaner. For soap scum and water spots on glass doors, use equal parts of hot vinegar and Dawn dish soap in spray bottle. Just spray it on, scrub, rinse and be amazed. Allow it to sit overnight for stubborn stains and scrub with a dryer sheet or magic eraser.
ONLY use this and it leaves floor spotless. (Heavy duty floor cleaner recipe: ¼ cup white vinegar 1 tablespoon liquid dish soap ¼ cup baking soda 2 gallons tap water, very warm.) It leaves everything smelling amazing.
Another recipe for liquid and powder dishwasher mixes 1 cup vinegar, 2TBSP lemon concentrate, 1 cup borax, 1 cup baking soda. that is all. that's for the liquid version. if you want it dry, skip the vinegar and lemon.