Retirement Retirement Traps to Avoid Full Size Version Share | Related Content Should You Ever Retire? A growing number of Americans are pushing back the age at which they plan to retire. Or deciding not to retire at all. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.