Having just come back from the Reptile expo in NY, driving down from Boston, here's how you do it: Put the reptiles securely in deli cups. Turn the car heater on. Drive to destination. I actually left Boston Saturday night, drove to New London, and kept the geckos in their deli cups overnight. Then drove to the expo and returned home. The geckos were probably cold for about 1 minute at each transition!

Aliza