Do you ever forget what side your gas tank is on? Well look at your fuel gauge inside the car, there should be a little symbol that looks like a gas pump with a little arrow that will either be pointing left or right of your gauge. That arrow tells you which side your gas tank is on :-)
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I'm not sure how many frugal members know about the "Gas Station Free Refill" fountain drink rule. I am a fountain drink-aholic.
Try to fill up your gas before the holidays. Gas prices usually increase by the holidays or holiday weekend, so don't delay and get your gas the last minute.