A hack to monitor your natural gas meter by Beerware license creator

I'm currently playing with the XML stream from my currentcost meter [1]. Within a week I've reduced about 20% of my electricity use. I wish I could track my Gas usage with such ease.<p>[1] - <a href="http://www.currentcost.com/" rel="nofollow">http://www.currentcost.com/</a>

There could well be a start-up opportunity right there - create simple wireless sensors that can be location near meters and feed this to a web site that can track and provide advice on energy usage as well as giving notification of what current energy usage is remotely.