Reduce your use of throw-away plastic. Next time you go shopping, take your own reusable bags with you. Replace the plastic cups at work with mugs. Look at the amount of plastic packaging used for food products before you take them off the supermarket shelf. If you’re hoarding used plastic bags at home, take them for recycling.
We have one of those plastic bag storage holders at home. It fills but magically disappears slowly. It must be because we reuse them for carrying cuddly toys and bits for P1.