We use GDiapers for our 8 month old son, Liam. These diapers are biodegradeable. The condo community we live in does not provide a recycling service, so we decided to do it our self. We make a trip to the local dump 1-2 times per week, it takes time for us, but it is worth it. Lastly, we try to just reduce and reuse as much as possible. For example, reusing containers (baby jars, sauce jars, plastic containers); turning off lights and other energy suckers when not in use, using cloth napkins rather than paper napkins, keeping a picture of water in the frig and using that in our water canteens rather than buying bottled water, etc. There are so many little things you can do that I think make a difference! Just think about how you live.
I use paper or cloth bags at the grocery store. However, I've not yet convinced others around me to do the same...so I ask them to give me any of their unwanted plastic bags. I then cut these into one inch thick strips and knit them into...well...plastic bags: purses, iPod cases, cell phone cases, reusable grocery bags etc.
Lower speed to 50, rather than 60-70. Tankless water heater (instant hot water!) No air-conditioner (I'm in Texas) Inexpensive plastic food storage containers for everything, lunch, freezer, storage - I've been using the same ones for 4 years. Recycle everything possible - food scraps to chickens, dog, cats, horse, depending on their tastes - horses LOVE melons!