Do you usually stay loyal to a certain gas station or do you go for the cheapest gas?

First of all, I am curious as to how much gas is where you all live, and whether you all go for the cheapest gas station or go with convenience and stay with the station that is along the way, even if the one across the street is 2 cents cheaper. Also, is you do have a preferred gas station, which is it, and do you all really think there is a difference in each one’s gas?

Currently, gas is about $2.89 where I live, and usually I always find myself going to Circle K. (I think its usually their coffee that brings me there all the time).