You've probably noticed a bunch of warning lights on your dash when you start your engine. They flash on to test the circuits and then go off if everything's OK. One of the warning lights looks like a car battery. Its job is to tell you if your battery's not charging properly.

 

All of us have those days when we’ve got a bunch of errands to run. Suppose on your day off you need to get gas, pick up some groceries, swing by your ATM and get the kids from school. Now you could make four trips, but that would be a waste of time and money – totally inefficient. Instead you get organized and hit the ATM first and get some gas next. Then you go to the supermarket and pick up the kids on the way home. Way better use of your time.