Again from my source on the ground, a specific list of things most needed:
50 cots * Mini-shampoos * Granola bars * SOCKS!! * Lotion * Bedding * Q-tips * Pre-packed aspirin/ibuprofen/Tylenol * Eyewash * Sunscreen * Gold Bond powder * Aloe vera
San Diegans can take these things to: AMERICAN MEDICAL RESPONSE 8808 BALBOA AVENUE, STE. 150 (BETWEEN 163 AND I-15).
Others in Southern California can take items to their local fire department where they will be sent to the location where they are most needed.