The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Life and Death of a Twenty Dollar Bill How long does a $20 bill last?