Key Points Index funds make investing easy. They can help you target growth, income, or both. Consider spreading your dollars across several funds. 10 stocks we like better than Vanguard S&P 500 ETF › As you save and invest for retirement, perhaps aiming for $1 million, be sure to invest your hard-earned dollars effectively. Take on too little risk, and you'll likely end up with a slow-growing portfolio. Take on too much risk -- such as with penny stocks or by day-trading or investing on margin - ...