Market Swings

Years ago, back when everything was fairly stable, I don't remember mutual funds fluctuating 1% or 2% a day.  Mutual funds used to be a fairly stable investment.  And granted, for 2013 the market has done well.  But these large swings, either plus or minus, have me a bit concerned.

What else are you going to do, earn .75% on your savings?  Kind of held hostage vs. hiding cash under your mattress.