All shells are created equal
There is no appreciable nutritional difference between eating an egg from a brown shell versus one from a white shell. The color of the eggs actually corresponds to the the color of the chickens that laid them. Typically white-feathered hens lay white eggs, while their red-feathered counterparts lay the brown.
Eggs can last way longer than you think
As in, their "sell by" date is not the same as their expiration date. Eggs can last in a refrigerator for approximately 5 weeks after their packing date -- usually about 3 weeks after you purchase them. If you think your eggs have gone bad, crack one and see if it smells rotten. You can tell.
You should always just store eggs in the fridge
Don't bother with a nice table or counter presentation. Your eggs will last a lot longer in the fridge. The shelf life of an egg stored at room temperature is a fraction of one stored in the refrigerator, and it's also to minimize the risk of Salmonella, that nasty disease your mom always warned you about but neglected to mention comes from chicken shit.
Luckily, as of this writing, the smart folks at the U.S. Department of Agriculture are not so timid. "The egg exits the hen’s body through the same passageway as feces is excreted....Temperature fluctuation is critical to safety," so they sayeth. "A cold egg left out at room temperature can sweat, facilitating the movement of bacteria into the egg and increasing the growth of bacteria."
(Eds. note: There may be some disagreement about refrigeration if you meet anyone from the United Kingdom. That's because our friends across the pond require their farmers to immunize their chickens against salmonella. Do not listen to them, as not only do we treat our eggs differently, but also because they are still the people that killed Nathan Hale and they can eat sweaty chicken doo-doo if they really want to, but that doesn't mean you have to.)
The best way to clean up an egg is with salt
Odds are if you're making eggs you've got some salt on hand anyway, so it stands to reason that if you drop one on the floor (we've all been there), you should put it to use. Quickly salting the egg on the floor before you pick it up will give your paper towels or other cleaning implement something to grab onto. It's a handy tip for most slippery messes that need a better grip.
Hens are pretty productive, all things considered
The entire egg-laying cycle -- from ovulation to expulsion -- takes about 25 hours. After a 30-minute recovery period, she'll start all over again. Throughout an average hen's egg-laying years, she'll lay about 276 eggs, according to the latest survey from the USDA.
Typically hens have two solid egg-laying years in their lifespans before they are either retired or the flocks culled, so in one lifetime a chicken might lay upwards of 550 eggs. The USDA placed the total monetary value of all chickens in the United States at $2.06 billion on December 1, 2015. That's more money than the GDP of Bhutan.