[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
It's appropriate that the holiday coming up very soon is called Sweetest Day, because to me, you are just the sweetest. I have treasured every moment we've spent together throughout our entire 26-year marriage, sweetie. I really mean that. In good times and bad, our relationship has grown stronger with each year that we share.
Now, let's do something fun to celebrate. I have some surprises up my sleeve and will be telling you soon about the special romantic weekend getaway that I have planned for us. I love you for making not just Sweetest Day but every day special.
[Sender's first and last names]