What feels like “just a bit of damp” is often the first sign of a slow, invisible breakdown. Trapped humidity feeds mold in carpets and seat foam, stains headliners, and leaves glass smeared and hazy no matter how often you wipe. Beneath the surface, that same moisture creeps into connectors and modules, inviting corrosion that can trigger erratic sensors, flickering lights, and repairs that seem random but share one quiet cause.

Yet the most effective defense doesn’t come from a fancy dehumidifier or expensive detailing service. Common kitchen salt in a shallow container, tucked safely on the floor, quietly draws water from the air. Paired with crumpled newspapers under mats or silica gel packs in storage bins, it turns your cabin into a drier, cleaner space. Used regularly, these almost free tricks protect fabrics, electronics, and your wallet—simply by keeping the air you breathe under control.