Divorce is different for each couple, and each divorce requires a different approach to reach satisfactory terms for the parties involved. A friend's divorce that you witnessed may seem very similar to your own impending divorce, or have some of the same moving parts, but it is unlikely that the exact same legal actions will lead to the same results. If you face a divorce, you need to assess your priorities before you begin building your strategy for getting through this difficult season.
In almost all cases, no single party actually gets everything. While states differ in how they maintain their respective divorce laws, no state generally tends to leave one spouse with everything and the other drifting in the wind. If you hope to leave your spouse out to dry, you may want to reconsider your approach. It is far wiser to identify your priorities in the divorce process and build a strategy specifically tailored to seek those results.