A. First of all, the trunk of your car is not the ideal location for a filled cigar case. During hot weather, the trunk will most likely bake them to a crisp. During cold weather they might fare better, but may cause the wrappers to dry out and/or crack, Ideally, the case should be kept under "normal" temperature conditions. Add to that the fact that unlined leather cases can suck a lot of moisture out the cigars in as little as one day.

Cedar-lined cases, like the one shown here, are much more conducive to keeping your cigars fresh like your home humidor. A case with a humidifier like the Le Tube 3 cigar pocket case (although it is not leather) also has the advantage of keeping the moisture in your cigars much more stable.

Regardless of which type of case you own, keep it on your person or close-by, and use it primarily for transporting your cigars. It's NOT a humidor.