We live in increasingly unsafe times.

In 2016, violent crime has gone up in several large American cities. Break-ins are commonplace. In fact, today’s cunning thieves scour social media sites to see when homeowners are out of town so they can easily dismantle security alarms and burglarize homes. These aren’t smash and grab thieves.

They’re sophisticated. We set up hi-tech security alarms and sensors, but it’s not enough.

The burglars still get in. But sometimes an easy, common sense solution to crime is better than the most advanced security alarm.

When a young realtor named Mariana Harrison moved into her first apartment in Texas, her father knocked on the front door with some important advice. He wasn’t carrying flowers or a housewarming gift.

Mariana’s dad had a screwdriver in one hand and several 4-inch screws in the other.

It’s easy for a determined burglar to kick down a door when it’s held in place by small, half-inch screws. For a homeowner like Mariana Harrison, one of the best security tips is to replace standard door screws with larger screws.

Four-inch screws are long enough to pass through the doorplate and into the doorframe, making the door more secure. A burglar will have a difficult time breaking down a door held in place with 4-inch screws.

In the end, simple household tools can prevent us from being victims of robbery.

Who needs high-end security systems when we have fathers who have potentially life-saving advice?