Many couples choose to honour each other, at some special later time, by renewing their original vows or pledges together.
This ceremony is a time for recognising all that has taken place for you both as a couple, and to state clearly your intention to continue in partnership with each other.
It may occur at significant anniversaries, or following the birth of a child as a way of incorporating that soul into the union. There is no limit to the way this expression of your continuing love and devotion can be formulated.
Surprise your beloved with a formal public ceremony!