Cold weather does a number on disposable vapes: e-liquid thickens, draws get weak, and sudden temperature changes can cause condensation and leaks. The fix isn't complicated. Keep your device warm—a pocket or insulated pouch works—and let it adjust gradually when you move between cold and warm spaces. Store it upright, and if it's already cold, warm it in your hands for a minute before you puff. That's the short version. The rest is about understanding why this happens and building habits that keep your vape working.