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

Other days

cursing

Cursing Day
ride the wind

Ride The Wind Day
cuddle up

Cuddle Up Day
mean girls

Mean Girls Day
hannah

Hannah Day
bubble bath

Bubble Bath Day
bounce

Bounce Day
book

Book Day
gum

Gum Day
martini

Martini Day