"The last Friday in July provides an opportunity to embrace new ideas and toss out old ways on National Get Gnarly Day."
https://nationaldaycalendar.com/celebrations/national-get-gnarly-day-last-friday-in-july
"On July 21, National Be Someone Day challenges each of us to take ten seconds to make a difference in a child's life."
https://nationaldaycalendar.com/celebrations/national-be-someone-day-july-21
"Across the United States, the third Saturday in July recognizes Toss Away the "Could Haves" and "Should Haves" Day. In short, don't go through life with regrets."
https://nationaldaycalendar.com/celebrations/toss-away-the-could-haves-and-should-haves-day-third-saturday-in-july
"National Simplicity Day on July 12 honors transcendentalist Henry David Thoreau, a man who advocated a life of simplicity."
https://nationaldaycalendar.com/celebrations/national-simplicity-day-july-12