Fully understanding the extent to which this poor girl is challenged by her lack of living skills, and knowing that should she have any of the standard forms of lubricants that might be used, she wouldn't be able to find them, might I suggest the following alternatives. Olive oil, cooking oil, sewing machine oil, a hair dryer to warm the lock and apply some melted lip balm, baby oil, castor oil,remove the dip stick from the car and drip some oil into the lock (if you know where it is located}---- and if all else fails, move to a location where you don't have to keep everything under lock and key. Dale