Anniversaries, dating or otherwise were invented for this reason.
I would suggest something like a dinner out at your favorite spot or maybe dinner and tickets to a show, concert or sporting event you will both enjoy.
You can check out what is happening in your area and purchase tickets online at Ticket
If she has a sweet tooth, don’t forget visiting a site like Edible Arrangements or Vosges Chocolates for something special.
If you are looking for a more exotic anniversary get away maybe a trip to an island or a mountain lodge or a cabin on a lake in the woods.
This picture of a street with three, five or eight buildings is personalized with details you provide personal to your significant events and locations.