Here's a couple for you...
#1 - this applies to all relationships - marriages, friends,parents and kids...etc - whatever you want in a relationship is what you have to be first. For example, if you want a loving, caring, and romantic (who doesn't) then that is what you must be. If you have been atrracting realtionships that are not working out or bringing issues into your marriage - then YOU need to find out the reason why you are doing it. The truth hurts, but when you realize that you are the cause (not necessarily all you...) of some of the issues, then you know you can fix them. "do unto others as you would have done to you"
#2 - Be thankful for each other every second of every day - no matter how small something my seem, say thanks - for drying the dishes, for putting the shoes in the closet, for smiling at you over dinner....say it out loud. What you give to your partner will be returned to you. Especailly if you are a Christian, you are aware of giving thanks to God every second of every day - not just On Sunday. God loves you unconditionally, you love your partner unconditionally. Keep that in mind, and be thankful for having them - after all it was God that brought you together!!
#3 - Give - Give all that you have to your relationship - whether Christian belief or science - God's Law is also the Law of Giving and Recieving (Reciprocating in Science / Physics - every action has an equal and opposite reaction) - whatever you give will be returned to you - not necessaruly exactly as you may expect, but God always returns to you what you give out, usually more than you gave. that works both positviely and negatively - remember that the next time you are angry with your partner too.
#4 - Respect yourself - You cannot respect your partner or anyone, if you do not respect yourself first. You are a spiritual being - God created you because he had a plan for you, just like he had a plan for your partner and everyone else. Each of you is special, and your relationship is like no other because God helped you create that too. Hold your relationship, and especially your marriage as the Holy Sacrament and gift from God that it truly is. God gives us all hills to climb, but there is always a reason for them, and his hand is always extended to help you up and from falling down on the other side. All marriages have ups and downs - good times and bad - but, you took a sacrament and made a covenant in God's eyes. The marriage is yours, the love is His and meant to be shared. When you share that love and respect that you hold for your marriage, you will find it much easier to cope with any difficulties that may come your way.
#5 - When you are at the base of one of those hills, or at a crossroad in your marriage, always take the path of least resistance. When you are angry, upset, or anxious, you are actually creating a resistance of your spirit. When this happens, you literally are cutting off the flow of God's love in your life and in your marriage. You, in turn, cut off the flow of love to your spouse and react with anger and frustration. Look at the reasons you are feeling this way, and then find a way to look at it from a different perspective and talk it out. If your spouse is home late again and it angers you, before you react, respond to your own feelings first. In this situation, for example, remember first that your spouse is late - yes - but the reason is because he/she had to work late to finish a project that means a great deal to him/her, and that they are working to help take of you and your family because of that incredible love between you. Then, when you are feeling a bit better, talk it out. Tell them that you were feeling frustrated and why, but that you understand why it happened and that you know it is because they love you.

Some will look at these tips and say, these don't always work in the real world. I am here to tell you that they do. I teach these concepts among others to people everyday. I know they work because I do it in my own life veryday, and my marriage, and my whole life is one that most dream about. I hope these tips helped you out.
Blessings,
Leigh Le Creux