Sometimes a love letter has to share center stage with a gift of flowers, candy, or something to wear. To put it simply, you're writing "I love you" on a gift tag. But you can make this little detail add depth by choosing an apt quotation and writing it nicely. If you're giving roses, for instance, search quotations websites for something original about flowers such as,"A single rose can be my garden... a single friend, my world." Leo Buscaglia.