This might be a very small thing, hope it will help, maybe most of your bros know this, but just a sharing.
Every time when we goes for petrol filling, if we are driving the car and we can't remember which side the petrol filling cap is, here is a way on knowing right or left(some of the cars don't have i think, but most of the cars should have by now), looking at the small triangle on your petrol symbol...
this mean the filling of petrol is on your left
and this is right
so when you drive in a petrol station, you will know which side to stop, my two penny sharing..