a service station close by which is open 24/7...
1)get an accomplice to park a car down the street make it about 50m from the service station (remove license plate)
2)wearing a ski mask and golves run into the station with a 9mm in your hand (i recommend no bullets...if you are caught it could help your defense

)
3)demand all of the big bills or you will kill the cunt
4) run back to your car and drive off
5) at home hide the car in a garage for a few days...burn clothes/ski mask and gloves you wore...
DO NOT
-tell anyone or brag about robbing the service station
-let the cashier put their hands out of your sight
-waste time asking for cigarettes
-rob an Arab...chances are he has a shotgun with him