Want a Happy Marriage? Be Nice, Don’t Nitpick

Thermostat settings. Dirty socks. Toothpaste caps. Our little habits make our spouses crazy. But no two people are ever truly compatible, so quit nitpicking each other, relationship experts advise.

Save the battles for the big issues -- and you'll have a happy marriage.

"The little things matter. What a happy marriage is based on is deep friendship, knowing each other well, having mutual respect, knowing when it makes sense to try to work out an issue, when it is not solvable." - Dr. Susan Boon, social psychologist