Good resources already posted, but this is also worth reading as an intro to thinking about income + costs of living as it pertains to early retirement: http://

Good resources already posted, but this is also worth reading as an intro to thinking about income + costs of living as it pertains to early retirement: http://www.mrmoneymustache.com/2012/01/13/the-shockingly-simple-math-behind-early-retirement/ http://www.mrmoneymustache.com/2012/01/13/the-shockingly-sim...