What do all of those things listed above have in common?  In my opinion, the are conveniences of living in the modern world.  Everything comes so easily to us these days.  I can go to a mall and shop at 30 different stores (if I want to).  I can get in my car and drive wherever I want.  I can go to the grocery store and stock up for a weeks worth of meals.  I have a refrigerator, which allows me to keep food cool.  These modern conveniences have made our lives so easy.  There is very little sacrifice when it comes to these things.