K., it is so much better all around to shop for produce at the farmer's market. It saves gas and pollution because the products do not need to be transported very far, the cost is usually far cheaper than the grocery store, organic and pesticide-free produce is more readily available, and much of it tastes better because it is picked ripe - not green and "ripening" in the truck and on store shelves. Not to mention we are supporting our local farmers, which is benefits everyone. There are farmer's markets nearly every day somewhere in the south bay, so finding time to visit one shouldn't be too hard. It's well worth the effort!
Also, a good way to reduce waste is to buy a reusable water bottle (Kleen Kanteen is one brand, there are others as well but I can't think of the brand names) and refill it from a filtered water dispenser at home. While water bottles can be recycled, it is still waste and takes energy to recycle them.
You can make cleaning products that work just as well as the chemical-laden commercial products, but won't harm you, your children, or any pets you may have. Vinegar is a good disinfectant (cut it with water) and glass cleaner. You can use a couple of ounces of Dr Bronner's to 15-20 ounces of water for a nice all-purpose cleaner. I use lemon juice and baking soda to scour the tub and sink, but you can also use a safe commercial product called Bon Ami.
For us, thinking of new ways to be "green" and doing our part to help the planet is a fun challenge. I hope you enjoy your journey - at the end of the day you'll feel really good about yourself and you're also modeling responsible values to your children!