Musical Card find a Anniversary card that has a great song on it that relates to you and her. My wife and I have been married 25 years we still fell like newlyweds because of things like your wife ask you to do. My wife got me a musical card once and I still cherish it. Money is not every thing picking the right $20 gift takes a lot of thought. The musical card works with a Cheap bottle of wine and inside the card write, (This card is good for one full body massage w\ or w\o oil. ) This will be something you both can enjoy.
Body paints and a cheap bottle of wine works pretty well also.
Dinner and a deck of cards. The cards are for strip poker. Wear lots of cloths and jewelry it prolongs the fun.
Take her out to dinner than go for a midnight cruise and use the sun pad on the boat wisely.
P.S. Remember to kiss and tell let us know.