Most couples find that after they have been married for awhile it becomes more difficult to stay together. One of the reasons is that as a couple you run out of things to talk about and you settle into a rather dull routine. Making sure that this doesn't happen is one of the keys to a successful marriage; fortunately it is not all that hard to do.
The most important thing that you have to do if you are going to save your marriage is to make sure that you and your spouse communicate. This is something that a lot of couples are not able to do. If you can't tell your spouse in an open and honest way how you feel there is little chance that you are going to be able to stay together. There will be a lot of issues that the two of you have to deal with during the marriage; if you can't talk about them there is no way that you will be able to address them.
Another important tip if you want to save your marriage is to make sure that the marriage doesn't take over your whole life. While your spouse should be the most important thing in your life they can't be the only thing. You need to have a life outside of the home with your own interests. If not you will probably become bored with the marriage and this rarely makes people happy.
One of the other benefits with having interests that are separate from your spouses is that it gives you a chance to get away from them for a little while. Clearly you are going to want to spend a lot of time with the person you married, if not there are real problems in the marriage, but you can't spend all of your time with them. Having a little bit of time that you spend on your own or with other people can make it a lot easier to handle the demands of the marriage.
A lot of couples run into trouble because they allow the kids to take over the marriage. Obviously having children is a major commitment and they do take up a lot of time. But you do need to find the time to spend together as a couple. If the only thing that you have to talk about are the children you will get bored pretty quickly.