Oops, it doesn't look like 'no buying day' is a national day..

Other days

law

Law Day
slime

Slime Day
first love

First Love Day
bow tie

Bow Tie Day
blanket fort

Blanket Fort Day
raise awerness of zeus

Raise Awerness Of Zeus Day
ruby

Ruby Day
one

One Day
unicorn

Unicorn Day
stud

Stud Day