DEAR HELOISE: I have several hints for multiple ways to use a 5-inch electric fan on a kitchen counter. You can use it to cool off closed containers of warm food before storing them in a fridge or freezer. You can place a paper towel under a colander and use the fan to dry washed grapes, tomatoes, etc. You can also use the fan to blow fumes away from your eyes when you’re slicing an onion or to cool off your face and neck when you’re having a hot flash.

— Sandra M.,

in Temple, Texas

DEAR HELOISE: Can you tell me the best way to clean onyx countertops, sinks and showers? I love my new bathroom, but I’m afraid I will scratch the surface. My contractor highly recommended it, but I read that you must be careful with the products you use for cleaning. Thank you for your columns and advice.

— Ruth M., via email

Ruth, use a soft microfiber cloth with warm water and a gentle pH-neutral soap, or a special cleaning product that is designed for stone. Never use anything harsh on onyx such as abrasive scrubbing agents, vinegar or lemon, and please seal the onyx on a regular basis.

Before agreeing to use a product, always do your homework. You can also research what it takes to keep onyx looking like new for many years. A contractor may mean well, but they don’t have to do the cleaning or care for what’s in your home.

— Heloise

DEAR HELOISE: For the person who’s trying to get rid of calcium-scale deposits in their shower, mix 1 cup of epsom salt, a 1/2 cup of baking soda and a 1/4 cup of liquid dish soap together. (No harsh chemicals or nasty smells to worry about.) It’s great for hard-water stains but also for calcium scale.

Put the paste on the calcium scale and let it sit for a few minutes. Then use a good scrub brush, which will start to loosen the calcium. It took a few times to get rid of it all, but the mixture was not harmful to the aluminum. Now I use it whenever I see calcium starting to build up again. It does make a large amount, so I usually make half as it will start to dry out if left for too long. Hope it helps!

— Denise, via email

Denise, here’s another hint: You can use lukewarm water and baby shampoo with a very soft cloth on your pearls to clean them. Never use hot water, ultrasonic cleaners, harsh chemicals or abrasive cleaners. Don’t use a toothbrush either; it’s too rough on delicate pearls.

— Heloise

Send your household hint to Heloise at Heloise.heloise.com.