Plastic Free July is a key initiative of the Plastic Free Foundation which has the vision of seeing a world free of plastic waste. The movement has inspired an estimated 326 million participants in 177 countries.
This video is a short introduction: https://youtu.be/CihOBjbPphA
You can join in by signing up at https://www.plasticfreejuly.org/ and choose to participate for 1 day, 1 week or 1 month. You will get lots of helpful tips and ideas.
You can also follow Plastic Free July on Facebook and spread the word!
Why not give it a go?