1,001 times! And you will never get the same answer!
When I first researched this I ran across an experiment/article from Mother Earth News http://www.motherearthnews.com/real-food/how-to-store-fresh-eggs-zmaz77ndzgoe.aspx that may be helpful to you.
I, personally, keep the eggs that I am going to cook with gently wiped off with cotton cloth (if needed) and on the counter (no water, no oil, no fridge). I have had a few go sour this way, but they were out for several weeks.
We also sell eggs roadside. Since there are so many different 'opinions' on whether the eggs should be washed, coated, refrigerated, etc. we take all precautions with the eggs we sell. They are collected right after laid, washed in cool water, coated with organic coconut oil, and placed in the fridge. To my knowledge, none of these have gone sour, and have lasted for several months in the fridge.