I have a problem.
I don't get out very often, and when I do I rarely have to fill up the cars gas tank. Seriously, I maybe have to do this a couple times a year at the most. So those rare occasions that the task of filling the gas tank is upon me I have a tendency to forget which side of the car the gas pump needs to be on. In this day and age a lot of fuel stations (like Costco and Sams club) have made it possible to pull the pump across to the other side of your car should you have pulled in with the tank on the other side of your car.
Personally I prefer to have the tank on the same side as the pump. It just makes life that much easier, but if I can't remember which side the tank is on its pretty much hit and miss.
Not too long ago I had the car and my husband asked me to fill the tank. I groaned out loud when I pulled up to the gas station, and because I had one of my brothers with me I explained to him how I hated trying to figure out which side of the car the fuel tank is on.
He being the car expert that he is pointed out a small arrow that is next to the fuel gage on the dashboard. He explained that that arrow tells you which side of the car the fuel tank is on.