Oops, it doesn't look like 'full stop day' is a national day..

Other days

lumpy rug

Lumpy Rug Day
hot chocolate

Hot Chocolate Day
bow tie

Bow Tie Day
promposal

Promposal Day
blanket fort

Blanket Fort Day
hoodie

Hoodie Day
boyfriend

Boyfriend Day
healing

Healing Day
boba

Boba Day
boy friend

Boy Friend Day