I have an "emergency evacuation kit". It's two large, wheeled storage boxes that fit the trunk of my car. They contain 2 changes of clothing for DD and I, two towels and washcloths, cash, food and water for 5 days (with plates, utensils, cups), first aid supplies and generic meds (cough syrup, advil, eye drops, etc.), flashlights, glow sticks, a deck of cards, travel scrabble and yahtzee, cash, battery operated radio, extra batteries, travel sized toiletries, soap for washing clothes, antibacterial wipes, cat food, kitty litter, listing of emergency numbers, copies of SS cards, birth certificates, insurance policies, and divorce decree.
Sits under the stairs in the basement so I can wheel it right into the car. We keep pillows and blankets in the car trunk anyway so I don't have to pack them in there. Having lost everything in a house fire years earlier, I don't feel the need to grab "things" to take with us. People, pets, policies, personal documents, and supplies -- that's what I need. The rest you can keep in your mind and heart.