When the right hand does not know what the left is doing, the left hand will take advantage and will shut the right hand in a closet door.
If a husband is entrusted with laundry over a period of a week or more, he will economise by running the machine less often. One morning your daughter will run out of school dresses and your son will run out of school shorts.
The zip on any dress that cost less than half price will break the first time you wear it.
If you save time by dropping off a prescription before going to the supermarket with the plan of picking it up afterwards, you will waste even more time by forgetting it and having to go back to the shopping centre specifically for that one item.
If you let your daughter have nail polish on the grounds that she is now old enough and sensible enough not to paint the white carpet in her bedroom, she will paint the white carpet in her bedroom.