Understand the principal differences between investment banks and commercial banks, and the areas of banking services that each provides.
Once you get them home, you can keep them for up to 5 weeks from the purchase date, even if the sell-by date expires during that time. If you purchased the eggs from a farm or farmers market and there's no date, keep them for up to 5 weeks from the purchase date.
Eggs last about 4-5 weeks in your refrigerator. If you don't know how long the egg has been in the refrigerator, fill a cup with water (enough to cover the egg), and put the egg in the cup. If the egg sinks to the bottom, it is still good to eat; if the egg floats, however, it is bad and should be discarded.