One of the most touching ceremonies I've ever seen is Independence Day at Monticello, during which immigrants are sworn in as new citizens of the United States. It starts at 9 am on July 4th this year, and is free. So before your cookout and your fireworks, take a couple of hours and visit Monticello, the home of the man who helped start it all.
For more information, go to Independence Day at Monticello