Anniversary

Well tomorrow is our 15th Wedding Anniversary and I have a bit of a dilema.  I have been searching the Hallmark stores for weeks for the perfect anniversary card.  I haven't found one yet that really hits my feelings for my wife just right.  I have one but its not really what I've been looking for and I guess what I'm asking is it wrong to get a blank card and fill it in?
I've been looking for that special card that mentions all the memories, the near future ahead, and beyond.  I haven't found it and I can honestly say that I have been to Hallmark stores from Jacksonville to Greensboro looking.  I hope Alison understands.