I recently bought a non-plastic water bottle for my health conscience and enviromental mom. I recommend Sigg products. They are a great company and their products are fun with lots of colors and designs from which to choose.
You can get them on http://www.reusablebags.com/. Also on this site are great bags for your kids’ lunches.
My favorites for the grocery store are the recycled bags from Asia that are hand made in a Co-op.