Do you need to spend $1 to $5 on a fancy energy bar to help you power through a long walk? How about energy gels? Sports drinks? While each of these can be convenient, you can probably use a far less expensive substitute. Like gorp, "good old raisins and peanuts." You can mix your own sports drink for pennies a gallon. I like the convenience of packaged snacks, but as we all head into tougher economic times, saving a dollar adds up to big bucks over the months. Find out more about what a research group says about overpriced energy snacks.