As you consume food, and care for your yard, you can also be helping your lawn and garden. Use the by products from your cooking, and the refuse from your lawn to make compost.
Compost is a natural, organic fertilizer that doesn't cost a penny. It aids plants in root development, loosens clay soil, helps hold water in sandy soils.
Worms love it, and worms help aerate the soil, and deposit their own organic material.
Find more information about composting, and the tools needed at the following link:
http://www.compostguide.com/