4 incredibly useful calculations you can do in your head

4 incredibly useful calculations you can do in your headhttp://blogs.moneycentral.msn.com/smartspending/archive/2008/03/19/4-incredibly-useful-calculations-you-can-do-in-your-head.aspxThis post comes from partner blog The Dough Roller . A mind is a terrible thing to waste. So let's not waste ours today. Here are four useful financial calculations that you can perform in your head: What am I giving up in retirement savings when I spendenCommunityServer 2007.1 (Build: 20917.1142)