Oops, it doesn't look like 'best friend best friend best friend day' is a national day..

Other days

lost sock memorial

Lost Sock Memorial Day

carpenters

Carpenters Day

bubble bath

Bubble Bath Day

cuddle up

Cuddle Up Day

tell a fairytale

Tell A Fairytale Day

bounce

Bounce Day

boba

Boba Day

kale

Kale Day

book

Book Day

donate your hair

Donate Your Hair Day