Introduction: Ever had your garage door throw a tantrum? You hit the button, it starts closing, then—bam—it reverses like it’s scared of the dark. Nine times out of ten, those little sensor “eyes” at the floor are giving each other the silent treatment. Let’s talk about how to align garage door sensors—because nobody’s got time for a door that’s moodier than a teenager. Hold On a Second: Unplug the…