I used examples from the Bible, because I'm a Christian.
But, based on the popular notion that all religions point to the "same" morality that seems to popularize the media today, I think the answer still should be the same for everyone. (I know this isn't the case, but I want to make argument anyway.)
1. Always tell the truth.
2. Don't steal.
3. Don't kill.
4. Don't take unfair advantage of those weaker than you.
5. Be consistent in what you do and say.
6. Don't lust after the opposite sex.
7. Treat everyone you encounter with dignity and respect, even people you might personally consider to be idiots.
8. If someone treats you badly, don't seek revenge.
There are probably more for this list, but there's a start. The problem I find in most people want to make exceptions.
Always tell the truth, except for situations when it would hurt someone's feelings, or would cause you embarrasment.
Don't steal, unless it appears that someone doesn't really care about the item anymore.
Don't kill, unless the bastard defiled your holy place, or caused harm or death to someone close to you, or in wartime.
I think morality really is pretty black and white, but our pride keeps us from admitting it. When things become gray, there usually was a decision made upstream ( a decision made some time ago ) that is causing this decision to become fuzzy. Had morals not been originally compromised, you wouldn't be in the gray zone.
I find that occurs in a lot of custody cases. It's hard to determine custody because both parents don't deserve their child, based on past lousy behavior. But, the child's gotta go somewhere, and each parent is determined to punish the other to get their way. ( Maybe Solomon was wiser than we thought in getting out the axe. )