Katie - 
So I have decided to set myself three different challenges and see which is the most difficult. I am going to attempt to give up Facebook, my car and limit my use of water. So I have already failed miserably at giving up Facebook, but on reflection perhaps this is not such a bad thing? I would rather be able to talk to my friends and wish people Happy Birthday than use material things like my car. But I suppose it is only day one and by tomorrow I could be really struggling with the concept of having short, luke-warm showers! Giving up my car hasn't proved too challenging yet, but I haven't had to walk to campus in the pouring rain carrying all my books so when I do, it could be a different story! We will see what tomorrow brings :-)