My freezer is a nightmare. When my hubby got out of the service a zillion years ago, the gave him a bonus check and with that money we bought a huge chest type freezer. I am short in the britches so everytime I have to dive in the freezer, I let hubby know so he can come hunting for me if I don't return.
The only suggestion I can make is at the very bottom of my freezer, I have milk cartons filled with water. That way if it stops or we have a power outage, the frozen water helps keep the contents colder for a longer period of time.