Oops, it doesn't look like 'leave your cell phone at home day' is a national day..

Other days

Tell A Fairytale Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Prosecco Day

Gum Day

Reading Day

Kiss A Brunette Day

Lost Sock Memorial Day

Martini Day

Donate Your Hair Day