 Have you ever tried to do a test to see how few trips you can bring all of those things inside? Or maybe you've tried to get all of the groceries in just one trip. Now, as you carry that heavy load from the car inside the house, have you ever become impatient while you're carrying that heavy load? Maybe there's animals that try to get underfoot and it's just frustrating, or there's children that are talking to you at the same time that you're trying to carry this, and maybe a spouse is asking you to do something.