Everything we use or consume has an impact on the planet. The resources used to make it, the enegy consumed by using it, the waste created from it etc. One of my favorite websites is www.biggreenpurse.com, it talks about helping the environment with what we buy. Here are a few ideas: First just buy and use less, most of us can do fine with a few less shirts or jeans etc. Replace disposable with reusable, use a real plate instead of paper or plastic, use a kitchen towel instead of paper towels etc. Look for ways to reduce packaging, food is a great place to start. I buy a variety of things in the bulk bins, pasts, grains, cereal, dried fruit, spices, sugar, flour etc. I also buy a lot of what I called real food, I don't buy much packaged or processed foods, these are much more expensive and often don't save cooking time.
Another area is your cleaning and beauty supplies. We wash tons of toxins down our drains and we are polluting our water ways with all the shampoos, bathroom cleaners and the antibacterial soaps we use. The FDA doesn't regulate these areas very well and they can have a variety of chemicals in them that they don't have to tell you about. I use vinegar and water to do most of my cleaning or a sink of hot soapy (castille) water. I use the skindeep cosmetics data base to see what is in my beauty products, I avoid hormones, parabens and a variety of other harmful chemicals that are routinly used.