Instead of buying new toys, set up a toy library with your friends and exchange them. The variety of toys will entertain the kids and they will be used by more than one child thus reducing your impact on the environment.
If you run a business and need to deliver mail and parcels regularly around town, use a bicycle courier service if one is available. Bicycles bypass traffic; are quick; and you will contribute to the improvement of urban air quality in your area.
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