Spiders come inside because they’re looking for two things: food and cozy hiding spots. Think of your home as a hotel with an “Open” sign. If you leave the side door cracked, they’ll check in.
Start with a quick walk around your house’s exterior. Look at windows, door edges, and any little gap where a spider could slip through. A simple tube of caulk or some weatherstripping is like putting a bouncer at the door. It costs ten bucks and saves you from finding a daddy longlegs in your cereal bowl.
Don’t forget the vents and utility lines. Spiders are tiny climbers—they’ll use a cable wire like a tightrope. A little mesh screen over outside vents works wonders.