A tip from the book Growing Up for Grown-Ups: Get a DRIP – it’s an easy way to watch your money grow without a lot of risk! How it works: Assuming a 10% average return over the long term – you could invest $50 per month for 10 years and you would have $10,408.81. Your cost was: $6,030.00 – that’s over a 72% return on your investment!