You've Got Mail
A blonde went out to her mail box and looked in, closed the door and went back in the house.
A few minutes later she went out and looked in the mail box again.
She did this several times and the neighbor that was watching her said, "You must be expecting a very important letter today the way you keep looking into your mail box."
"No," the blonde answered, "I am working on my computer and it keeps telling me that I have mail!"