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

Other days

bubble bath

Bubble Bath Day
first love

First Love Day
lash

Lash Day
ride the wind

Ride The Wind Day
hannah

Hannah Day
pick me

Pick Me Day
kale

Kale Day
nae nae

Nae Nae Day
slime

Slime Day
lost sock memorial

Lost Sock Memorial Day