compramise, you can't have it all your own way.
laughter.....
and respect for each other.
I'm 36yrs next March
Talking things out instead of bottling things up.
Doing romantic things for each other frequently.
Looking after each other and caring about each others health.
Supporting
Not partaking in anything extra marital or cheating.
Stroppy....we work together too, on the same dept:
he has never been one for opening his heart sharing problems though, I've had to drag out of him most stuff that was bothering him.....
Maggie, your OH is still with you though and always will be.
Apart from one, who is the partner of a friend whose wife died, the group of friends that I'll be going out with tonight, and have done every week/fortnight for 38 years, have all been married longer than I have. I've been married 45 years next month.
I agree with all that's been said, even though hubby and I are like chalk and cheese. Food, entertainment, friends and hobbies, are all different, but as someone said earlier, our basic values and ambitions are the same. We do our own thing during the day and in the evening we sit in separate rooms to watch different programmes on TV, or sit in different rooms doing different things on our computers. Not for long though because he always goes to bed early and gets up early, and of course, I'm just the opposite! We've spent day and night together since he retired 20 years ago, before that we worked together. 
