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

Other days

donate your hair

Donate Your Hair Day

ask out your crush

Ask Out Your Crush Day

chocolate milkshake

Chocolate Milkshake Day

tulip

Tulip Day

girl friend

Girl Friend Day

Emoji Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

first love

First Love Day

hiv awareness

Hiv Awareness Day

my little pony

My Little Pony Day