The 60% solution is a budgeting method I’ve seen mentioned on a couple of blogs. The basic concept is to limit your committed expenses to 60% or less of your total income. Then commit 10% each to retirement savings, long-term savings, short-term savings for irregular expenses, and fun money. Looking at my budget for last month my committed expenses are quite easily under the 60% limit. I don’t actually follow the 10% guidelines for what to do with the rest of my money but as the article indicates once you have your committed expenses at 60% it is simple to save money.
Since I have a lot of debt to repay I don’t think the 10% guidelines work too well for me. Right now I just put as much extra money as I can towards debt. Since I’m frugal I don’t worry that I’ll waste my money without specific guidelines on where to spend it. I use Pear Budget to do my budget and it works fine for my simple needs. I use it more as a way to track my income and expenses than as an actual budget.