Please share with me what has seemed to work for others who live in the desert climates of this great nation. I have found that for the most part, a really heavy duty sock, soaked to dripping over the full trays can keep me at 70% for the better part of two days, then it dips to 50. Which has left me with some shrink wrapped chicks. I am looking for other suggestions. The sponges just dry up in a matter of hours.