Yes. For one thing, savings account interest yields will eventually go down at some point in the future. When the economy slows down again, the Fed will pull back the interest rates and with that your savings account rate will also shrink. It was only less that two years ago that ING offered something like 2.30% (as opposed to 4.50% now).
If you just give your money to a company like Vanguard or Fidelity, they can usually make you 8-10% in the long run. You might suffer worse years or better years, but in a 10+ year timeframe, that's what you could expect. And you don't really have to do anything.
Now if you are really risk averse, and especially so if you are younger, then you can afford to dabble in stocks and/or other equity investment vehicles. The risk is a lot higher, but so is the potential reward.