Rule - Have a code to live by
Have a code to live by. Think of what you would do in many situations. This will make choices easier, as you have already decided with a sound mind, which won´t be possible in the heat of the moment.
For example, should I do that with my friends? Should i have another drink? Should i kiss her, despite being much older/younger? Should I take advantage of this situation or would it be wrong? I eating this cake going to ruin me?
As you see, it will be usefull from the most simple situation to the most extreme one.
Let me tell you some of mine. Always be a gentleman. White socks when doing physical activities, otherwise always black. Dating a girl that is at most four years younger then me. No food after eight pm. When starting to feel tipsy, simply stop drinking. Exercise self control, otherwise you will feel miserable later.
Well then, good luck. And i would enjoy you posting some of yours down here, which you would consider to be most important and recurrent.