Why It Matters
Modern home security often feels complex and expensive: smart locks, alarm systems, subscriptions, and cameras all promise peace of mind—but they take money and maintenance. The foil trick doesn’t replace these systems—it complements them. It’s not a lock or physical barrier; it’s a quick, no-cost way to stay alert, taking less than a minute to implement.
How It Works
Setup: Before bed or leaving home, wrap a sheet of aluminum foil snugly around your exterior door handle. No tape, no hassle.
Indicator: Aluminum is soft. Any attempt to jiggle or twist the handle leaves dents, creases, or smudges. When you return, you’ll instantly know if someone tampered with the door.
Sound: Foil crinkles loudly when disturbed. In a quiet house at night, that sharp noise can alert light sleepers and break an intruder’s expectation of silence.
