Composting, and recycling glass, metal, and paper greatly reduces the need for plastic trash bags. Most of my regular trash these days is plastic that can't be recycled - either food contaminated, or thin plastic bags. And when you have so little landfill trash, you don't need to buy those massive plastic garbage bags. In my household, we just use the plastic bags that we get our produce in - and we don't even bag all of our produce, just things like leafy greens (delicate) or green beans/okra (hard to keep together)