Put water and vinegar (or lemon juice!) in a microwaveable bowl. Microwave for a few minutes; the steam will loosen up any gunk and you can just wipe it clean!
Sprinkle shower/tub with baking soda and then spray with vinegar. After done sudsing then scrub - very easily removes hard water stains. Use cut lemon to remove and keep off water spots from the metal fixtures. (I did this today and it works like a CHARM)
To clean ceramic stove top...no chemicals...Works better than store bought cleaners!! Soak clean rag in hot soapy water, Apply baking soda in a generous amount all over the affected area of ceramic stove top. Cover with wet (not damp) rag. Let stand 15 min. ** USE GLOVES** Gently scrub the surface. Dry off surface. Repeat if necessary. Best remember for before we move!