I understand that "Fourth of July" has become the normal shorthand way to refer to the Independence Day holiday. But I think it's probably a good idea to still refer to it as "Independence Day" at least some of the time, to remind us that what we're celebrating isn't watermelon or fireworks, but freedom.
On occasions like this year when the Fourth falls on a Sunday and some communities or organizations might choose to celebrate on the Third -- a Saturday -- instead, some of them actually promote the event by saying "our Fourth of July Celebration will be held on July 3." In a case like that, wouldn't it be better just to say "our Independence Day Celebration will be held on July 3"? That's a perfect opportunity to call the holiday by its real, legal name.
Just a pet peeve of mine, I guess.