What shall I write about?

What more can I do to my house that doesn't cost a butt load of money that will make it more sustainable?  What does that mean anyway?

I was washing the dishes last night - I do use the dishwasher but I also wash by hand when I'm cooking because often the pots and pans/measuring cups/measuring spoons need to be re-used.  There is only one sink with the plastic tub in it.  A lot of water is wasted!  Remember back on Memorial Day weekend when the basement sink drain clogged and I couldn't drain any water down the kitchen sink? I saved all the water in that plastic tub and every few minutes would walk outside and water various plants with it.  It was a big pain in the butt to do that but every day I realize how much water is wasted.  Especially since we are going into what seems like day 1000 without rain.  So what do I do?  There was an article years ago in the Washington Post about a couple who had rigged up all sorts of pipes and drains to capture gray water - from sinks and laundry.  Has anyone does this? How can I efficiently use my dish water and sink?

I also need a new kitchen floor - what should I get?

I need to get back on track to participate in Blog challenges.  Like these:

http://cookalmostanything.blogspot.com/2008/09/whb-whos-hosting.html
http://urbanhennery.com/09-10-dark-days-challenge/
http://www.meatlessmonday.com/
http://www.canningacrossamerica.com/tag/tigress-in-a-jam/
http://www.thecrunchychicken.com/2010/09/hang-em-dry-challenge.html

What else can I write about?