Today on Planning:
  How Gas Prices Work - When gas prices are on the rise, it can be economically devastating –- an increase of just a penny per gallon can hit some of us pretty hard. Find out what drives the price at the pump.

  How Sunburn And Sun Tans Work - There is something mysterious about the sun and skin: Why do some people tan, and others burn? What's happening, and why does sunscreen prevent it? Find out exactly what the sun does to your skin.

  How Frequent Flier Programs Work - Do the words "Please return your tray table to its upright and locked position" sound more familiar than your address? Find out how frequent flier programs work and how to pick the right one.

    
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