How to defrost the refrigerator

We always boil two pots of water and then sit one in refrig. near those fin things and one in the freezer part. Put a thick hot pad under the pans. As it cools a bit, re-heat it and put back in. I sometimes use a plastic knife to loosen the ice after it starts to melt and take out the sheets of ice. Seems pretty quick. I also put the stuff in the sink altogether to keep it cool. I always put towels and catch a lot of the water and wring them out. Just seems to be quicker this way.