Gather your eggs at least one a day. Do not leave them in a nest hoping one of your hens will go broody. I use golf balls for that and an added incentive for my hens to lay in the nest boxes.
if your eggs are clean you can decide if your are going to wash them or not. it is your decision and you will hear good points on both sides here.
i wash mine briefly in cold water just because i feel better about it.
an egg when it is laid has a invisible coating on it, bloom it is called, that helps prevent bacteria from getting thru the shell. this Bloom is removed when the egg is washed.
if you are intending to hatch some eggs, do NOT wash or refrigerate. just keep in an egg carton, point down and tip carton from side to side each day for up to 10 days until you have enough saved for your broody hen or incubator. (now i am assuming you have a rooster so the eggs are fertle).
if your egg is dirty, wash it.
Enjoy!