Oops, it doesn't look like 'order a pizza instead of making dinner day' is a national day..

Other days

offer

Offer Day
bow tie

Bow Tie Day
artists

Artists Day
boy friend

Boy Friend Day
book

Book Day
blanket fort

Blanket Fort Day
embarrass your best friend

Embarrass Your Best Friend Day
gum

Gum Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
fiancee

Fiancee Day