This is a tip that works and I have used it several times in my life.
If you are stuck somewhere and your car doesn't start, look under the hood and check the battery cables.
When they get corroded it doesn’t allow connectivity between the car and battery. If this happens one way to get rid of the corrosion on the battery is to pour Coke or Pepsi over it. The acid in the soda will eat away the corrosion and you will be able to start your car.
Keep in mind that if you have a corroded battery then you will need to do a more though cleaning when you get home.
