Bleach? I think I will give that a miss, although looking at the mud on some of our eggs, perhaps bleach would be what they need.
I do have a feeling, looking at the amount of people round here with eggs for sale signs outside their house, that the day will come where selling from the gate/house will be stopped. Some health and safety rule will appear, or the bigger egg producers will say its not fair that they have to be registered etc. etc.
To be honest, I do wonder about our local shop and butcher, as in the height of summer I do sell a lot of eggs, and some of these people have said they used to go to the shop or the butchers, but our eggs are better. I do feel a bit guilty taking their business, but there again, I am not a business, just doing it to pay for my hen feed!!