Save on Gas for your Auto Trips

On my way out of town to client meeting, checked GasBuddy.com and also Mapquest's gas price map [the search in Google produces quite a few options: 'gas prices']. Pricing in Des Moines as of now is about $2.52-$2.54 a gallon and up in Mason City where I am headed [and on the way] the price steadily rises to around $2.80. For a savings of around 20 cents a gallon, that's a good use of 5 minutes of my time.