Tools mentioned by David Bach

“When changing jobs, immediately roll old 401k funds into an IRA or new employer plan and verify investments transfer correctly.”

“Save one hour per day of income (12.5% of gross salary) into pretax retirement accounts like 401k plans. This amount, invested consistently over 26 years at historical market returns, creates millionaire status for ordinary workers.”

by Vanguard

“Running the math shows investing five years of early payments in a Vanguard balanced fund earning 8% outperforms delayed higher payouts.”