In celebration of the International Day of Happiness tomorrow, #100HappyDays is encouraging people to submit a picture of something that made them happy that day. Everyday. For one hundred days straight.

Think you’re up to the challenge? #100HappyDays has said that 71% of people who have taken part in the social media experiment so far failed to complete the challenge.

Seeing as so many of us are already active social media users, why not start posting for our own good? #100HappyDays claims completing the challenge is pretty good for your mental health and outlook on life.

All you have to do is register online here and start posting using the hashtag #100HappyDays. Below you can enjoy a few happy snapshots shared by those so far!

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