Sue, I admit I will even google how to boil water .... I recommend checking everything. Since I am retired and have time now, I have saved many hundreds of dollars by checking things out....there are a lot of mistakes in this world! Here is a example for everyone: When buying new tires for your car, be sure they don't give you old tires, and that the tires have close manufacturing dates (week and year manufactured are on the tire).... I discovered once that they had given me tires two years apart in age ...and rubber ages whether you drive on it or not! Inventory not organized well and tires can sit there for years.