When purchasing anything, from food to clothes to plasticware, be aware of where the item was produce. If possible, try to purchase items made in United States. You can find other fair-trade products from www.tenthousandvillages.com.
Look at the ingredients in your products, especially cleaning products. Many contain bleach and other damaging chemicals; look for more eco-friendly and phosphorous free cleaners and detergents. To reduce waste, look to purchase products with the least amount of packaging possible.