Write love letters to each other on the eve of wedding day, place them in a box with wine and nail it shut. When you have your first fight, open it up, pour the wine, go to separate corners, read the love letter & remember what it's all about.
Or to spice it up:
Before the wedding you both write a love letter to your other half and include your favorite bottle of wine. Place in the box. You don’t open the box until your 10th anniversary (or really whatever anniversary you choose), UNLESS you hit a rough patch in your marriage before then. Either way, on the day that you open the box, you both read the letters and drink the wine, remembering how you both felt just days before your wedding day.
Before the wedding you both write a love letter to your other half and include your favorite bottle of wine. Place in the box. You don’t open the box until your 10th anniversary (or really whatever anniversary you choose), UNLESS you hit a rough patch in your marriage before then. Either way, on the day that you open the box, you both read the letters and drink the wine, remembering how you both felt just days before your wedding day.