Home maintenance advice has a funny way of getting passed from one generation to the next. A neighbor says something worked for them, a parent repeats it, and before long, everyone treats it like a rule.
Some of that advice is useful. Some of it can waste your time, cost you money, or even cause damage if you follow it without checking the facts.
From cleaning gutters to using vinegar on every surface in the house, these ten common maintenance tips aren’t quite what they seem.

You Only Need to Clean Your Gutters Once a Year
Once-a-year gutter cleaning might be enough for some homes, but it isn’t a good rule for everyone. Houses surrounded by trees often need attention several times a year, especially during fall when leaves and small branches can quickly collect in the gutters.
A clogged gutter can send rainwater over the sides instead of through the downspouts. That water may end up against your siding, roof, or foundation, creating problems that cost far more to fix than a gutter cleaning.
The National Association of Home Builders recommends cleaning gutters at least twice a year for most homes. If your property has lots of trees nearby, check them more often.
Cleaning Air Ducts Dramatically Improves Indoor Air Quality
Air duct cleaning sounds like an easy way to make the air inside your home cleaner, but it isn’t a cure-all. The EPA says routine duct cleaning hasn’t been shown to prevent health problems or consistently improve indoor air quality.
There are situations where professional duct cleaning makes sense, such as visible mold, heavy dust buildup, or other debris inside the system. For routine household air quality, replacing HVAC filters, controlling moisture, and bringing in fresh air can make a bigger difference.
Related: 12 Warning Signs Your Home’s Insulation Needs Replacing
Bleach Kills Every Type of Mold
Bleach has a reputation as a universal mold killer, but the reality is more complicated. It can work on hard, nonporous surfaces such as glass and some types of tile. Porous materials are another matter.
Wood, drywall, carpet, and other absorbent materials can hold mold below the surface, where bleach may not reach it. Trying to scrub away a serious mold problem with bleach can leave the underlying issue untouched.
For small areas, use a product that’s appropriate for the material you’re cleaning. Larger mold problems or areas caused by ongoing moisture may require professional help.
Every Foundation Crack Means Serious Structural Damage
Finding a crack in your foundation can make any homeowner nervous, but a crack doesn’t automatically mean your house has a major structural problem.
Concrete and masonry can develop small cracks as a house settles and materials change with temperature and moisture. A narrow, stable hairline crack may be relatively harmless.
Pay closer attention if a crack is getting wider, appears suddenly, runs diagonally through masonry, or is accompanied by sticking doors, uneven floors, or water entering the basement. Those signs deserve an inspection from a qualified professional.
Related: 10 Unexpected Home Design Trends Set to Take Over in 2026
Painting a Wood Deck Protects It Forever
A fresh coat of paint or stain can make a tired deck look great, but outdoor wood still needs regular care. Sun, rain, temperature changes, and moisture gradually wear down protective coatings.
Once the finish starts peeling or cracking, water can reach the wood underneath. Over time, that can lead to rot and other damage.
How often a deck needs to be refinished depends on the product used, the climate, and how much exposure the deck gets. Rather than treating the first coat as permanent protection, inspect the boards and finish regularly.
Wipes Labeled “Flushable” Are Safe for Septic Systems
The word “flushable” on a package can be misleading. Many wipes don’t break apart as quickly as ordinary toilet paper, which means they can contribute to clogged pipes and problems with septic systems.
A wipe might disappear from the toilet bowl, but that doesn’t mean it has completely broken down farther down the line.
If you have a septic system or simply want to reduce the risk of plumbing problems, toilet paper is the safer choice for flushing. Put wipes in the trash instead.
Running Water Prevents Garbage Disposal Clogs
Running cold water while using a garbage disposal is good practice, but it doesn’t make the disposal immune to clogs.
Grease, cooking oil, coffee grounds, fibrous vegetables, and other troublesome foods can still create problems. Some materials can wrap around the disposal blades or collect farther down the drain.
Use the disposal for appropriate food scraps and avoid treating it like a second trash can. Running water helps move suitable scraps through the drain, but it can’t compensate for putting the wrong things into the system.
Related: 17 Things You Should Never Toss When Decluttering Your Home
Duct Tape Can Repair Almost Anything
Duct tape is handy for quick fixes, which is probably why it has earned such a legendary reputation. But calling it a permanent repair method is another story.
The adhesive can break down with exposure to moisture, heat, sunlight, and time. A patch that holds for a few hours or days may eventually fail.
Duct tape is fine as a temporary measure while you arrange a proper repair. For plumbing, electrical work, roofing, or structural problems, use materials made for the job.
Turning Off Electronics Always Stops Their Energy Use
Switching off a television or computer doesn’t always mean it stops drawing electricity. Many modern electronics continue using a small amount of energy while in standby mode.
The U.S. Department of Energy says standby power can account for up to 10% of a home’s annual energy use.
Unplugging devices completely is one option, though that can be inconvenient for electronics you use often. Smart power strips can make things easier by cutting power to connected devices when they’re no longer needed.
Vinegar Is Safe for Every Surface
Vinegar is inexpensive and useful for plenty of household cleaning jobs, but it isn’t a universal cleaner.
Its acidity can damage or dull certain materials, including natural stone such as marble and granite. Repeated use on some wood finishes can also cause problems.
Before using vinegar on a new surface, check the manufacturer’s cleaning instructions. Vinegar can be a handy household cleaner, but using it everywhere isn’t a shortcut to a cleaner home.
