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

Other days

bounce

Bounce Day
cat girl

Cat Girl Day
nail polish

Nail Polish Day
lumpy rug

Lumpy Rug Day
book

Book Day
nae nae

Nae Nae Day
ruby

Ruby Day
frozen yogurt

Frozen Yogurt Day
law

Law Day
donate your hair

Donate Your Hair Day