Eliminate those little stickers on fruits and vegetables you get in grocery stores

No one looks at them anyway and they waste paper and time.  They are there to tell the consumer where and if it is conventionally grown, organic or genetically engineered.  I just found that out from this blog, Fruit PLU Label: How to Tell if a Fruit is Organic or Genetically Engineered.  When were they going to tell us about that?  I had no idea!!  There has got to be a better way.

Require all new construction to have a passive solar water heating system.

There are systems that work with pumps or even better with gravity. You can build onto an existing home with reused materials.  Free hot water for a small investment — pretty cool.  Here is a longer explanation of the process from a commercial standpoint.

Have all outdoor lighting supplemented with solar power

Then only use the electric grid when necessary. They are doing in in Dubai, an oil producing nation.