Heat is the enemy of any vape. Spring sunshine streaming through a window can turn a room into a greenhouse, and leaving your device on a sill is asking for trouble. The battery and e-liquid both suffer in high temperatures. You might notice a thinner vapor, a harsher throat hit, or even a leak.

So, find a cool, dry spot. A drawer, a shelf away from radiators, or even a dedicated vape case works. And if you're charging a rechargeable model, do it on a hard surface, never on the bed or couch. That's just common sense.