I try really hard, and sometimes I wonder how much of a difference it makes, I do feel it's practical to a point.
All light bulbs are the mini florescents....I hate them. The light is ugly. Except in the kitchen I have halogens because I have to see what I'm doing!
I recycle everything and do have pick up so its pretty easy to do. Our regular garbage for 3 people is down to about 3 kitchen sized bags a week.
I buy all "green" paper products like paper towls and toilet paper. I use a steamer to clean to keep down the use of most household chems.
I try not to make trips in the car without having a passenger running the same errands.
We are on a septic system.
All lights are off during the day, and I even had a switch on my hotwater heater installed. After everyone showers I just shut it off for the day. This really works. The water is hot enough to last the rest of the day and I flip it on in the early morning. Hot water is ready in 20 minutes. I wash clothes in cold water, and a lower dryer temp.
I run my pool pump at night and keep the temp at 78 for air conditioning.
I am about at my "practical" limit. I hope it is making a difference!
edited to add: I also use Freecycle.org in my area to get rid of any large and misc. items that might wind up in the trash. Its amazing how well this works! From old metal pipes, to appliances, furniture, clothing, blankets. etc.
r.