Think about how many products you use in your life on a regular basis. From bread tags to phone chargers, there are a plethora of gadgets that make everyday life a little bit easier. Most of these items we can just pick up and know how to apply them to our everyday lives. Indeed, you understand the purpose of a veggie peeler, right? Other products require some trial and error to figure out how it works. However, through human practice, we teach others how they’re supposed to be used - like slushy lids.