Why do we drive two hours round-trip to Prosper, Texas, to buy a couple of dozen eggs every month? Because we have too much time on our hands, frankly. But also because we like our eggs fresh. Know the following: Mahard is family-owned and the 10th-largest egg producer in the country, with something like 3 million white leghorn hens busily cranking out the stuff for our omelettes and soufflés. We do not have to deal with the unpleasant smell of 3 million white leghorn hens when we visit the tiny outlet in Prosper. The hens proper are located elsewhere. We can buy Mahard eggs in the grocery store down the street, but those eggs might be three weeks old. As of press time, we could get a dozen extra large at the outlet in Prosper for 70 cents. And those eggs would have been inside a hen fewer than 24 hours prior.