Anniversaries, dating or otherwise were invented for this reason.
An anniversary should be a day when you conveniently forget about the rest of the world, and focus on each other.
Flowers are romantic and sweet and if sent to the office flowers create the added advantage of allowing your significant other to bask in the envy of their co-workers.
Some gift stores and websites have created their own lists of suggestions but nothing as widely recognized as the wedding anniversary symbol list first created by Emily Post in 1922.
However if you have a good thing going, it is important to let your partner in the relationship know that you appreciate them.
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.