When it comes to the way we procure the goods we use in our lives, there are some mixed messages out there. Buying local is advertised as a green way to go -- and it can be -- but so is acquiring stuff with minimal shipping and transportation. Shopping online is fast, convenient, and your stuff comes right to your door -- no car trips required; shopping in local brick 'n mortar stores supports your community, and may not require much (or any) driving either. So, which is the greener way to shop?