Forgetting a birthday (or anniversary) is one of the quickest ways to cause relationship problems. You can be coasting along in a great casual relationship, forget a birthday or anniversary, and the relationship is instantly transformed into chaos.

Give yourself a solid reminder either through jotting something down in your planner or signing up for a website that sends you messages as reminders.

Do whatever you have to do to make sure you don't forget these important dates. Your relationship happiness just might depend on it!