"And these words, which I command thee this day, shall be in thine heart: And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up." (Deut 6:6-7)
There are a list of do's and don't written in the word of God. We call them the commandments. They are what the Jews were commanded to do while they waited for the Messiah. They are part of our lives still today.
We are told to keep these in our hearts - to "write them" in our hearts - to live them in our daily lives. No, we can't live up to these words 100% of the time, but we can certainly make the effort. As I have said before, Jesus gave us two additional commandments - that we love others as we love ourselves and as He has loved us. If you think about it, it's really only one command. We are commanded to love. No just those who make us smile, not just those we have something in common with, not just those we "feel like" loving -- we are to love one another!
Yes, people aggravate us and make us shake our heads - but we are still to love them. As perfect as each of us thinks we are, there are those we aggravate as well -- they are commanded to love us - why shouldn't that apply to us as well?
Take a minute today to think about why it is that someone annoys you. What can you do for yourself to make they less annoying?