Oops, it doesn't look like 'OffersGet Clean For Memorial day' is a national day..

Other days

kale

Kale Day
prosecco

Prosecco Day
eat what you want

Eat What You Want Day
ask out your crush

Ask Out Your Crush Day
stress awareness

Stress Awareness Day
boy friend

Boy Friend Day
martini

Martini Day
pampering

Pampering Day
donate your hair

Donate Your Hair Day
hiv awareness

Hiv Awareness Day