These all make sense to me, but try them at your own risk, as you cannot underestimate my knowledge of these matters.
1) Try vinegar to remove hard water stains from coffee pots.
2) Rub baking soda into your stainless steel sink with a nylon sponge to remove stubborn water stains.
3) Granite countertops will look good longer if you use a store-bought cleanser developed especially for this purpose.
4) It's important for your health to keep your refrigerator clean. Regularly remove everything from your frig and wipe the interior with a mix of baking soda and warm water. Wipe it down again, this time with plain water, and let it dry before replacing items.
5) Remember to clean the freezer once a year, too. Turn off the refrigerator and follow the directions that came with your refrigerator.
6) Vacuuming the coils keeps your refrigerator working more efficiently.
7) You can combat build up on glass shower doors with a fine mist of rubbing alcohol and water every day.
8) To reduce soap marks on your bathroom mirrors, switch from bar soap to liquid soap. The typical bar soap includes talc, which causes the residue to adhere to surfaces like tile and mirrors.
9) If you wash your clothes at a laundromat, you may wish to to use a disinfectant wipe on the tub and agitator. Wait at least 90 seconds before adding your laundry.
10) White vinegar is often successful at removing perspiration stains. Dab it directly onto the spots before tossing the garment in your washing machine.
11) Reduce the rub off from new blue jeans by washing them first, and adding a little white vinegar to the water.
12) Regular shampoo can be effective for pre-treating tomato/catsup stains.
13) Towels will remain more absorbent longer if you don't use fabric softener on them.