How to clean fruits and veggies. soak them in a ratio of vinegar and water to help remove toxins and pesticides. leave them soaking for up to an hour, longer with non-organic apples. No, it doesn't change the taste.
Don't make that trip to the store just yet!! It never fails. Your in the middle of baking up something wonderful when you realize you are plumb out of a key ingredient. Before rushing off to the store check out this post full of emergency ingredient substitutions for baking.