Two challenging blogs about living very simply are www.zenhabits.net and www.mnmlist.com . Both are by the same author Leo Babauta, and both are worth reading, even if they are a bit too radical for me to take seriously. They do make you think about alternative ways of living which sound very attractive: When you eat, just eat. Start small. Reduce your tasks. Choose an easy goal. Don't complicate things. Smile, breathe and go slowly. I think I'll make that my mantra for today.
Check it out (another nice thing - no ads).