Oops, it doesn't look like 'adopt a cat month say something nice day' is a national day..

Other days

singles

Singles Day
bow tie

Bow Tie Day
blanket fort

Blanket Fort Day
nail polish

Nail Polish Day
cursing

Cursing Day
self care

Self Care Day
pick me

Pick Me Day
tell a fairytale

Tell A Fairytale Day
azonto is acceptable

Azonto Is Acceptable Day
boyfriend

Boyfriend Day