If you reduce your lawn area, you're doing so many things good for the environment: less maintenance, no chemicals and fertilizers, less stormwater runoff. And a lawn provides little or no support for wildlife.
There are already many great sites and pamphlets around that talk about why we should reduce our lawns. If you want to know more, check out these links:
If you decide you want to start the process of reducing or eliminating your lawn, remember that you don't need to do it all at once! Most people gradually start reducing their lawn by replacing small lawn areas with mulched native plant beds or pathways.
For the mulch part, the City will deliver free leaf mulch each February/March to homes in the City of Falls Church and up to a 2-mile radius from the City. Also Growing Earth Tree Care (703.818.8228) will deliver a truckload of wood chips to your driveway for free when they happen to be in your area with a load of chips.