Hello Anthony,
Being in Disney World with your Princess sounds like a wonderful way to spend your anniversary! I know it takes a lot to save up for this trip of a lifetime, so you'll want to count your pennies while your down in Florida. Fortunately there are tons of things you and your wife can do - with or without the kids - to celebrate this milestone!
Have you considered hanging out on the
BoardWalk during your vacation? The BoardWalk comes to life at night with street performers and carnival games. Walking hand-in-hand with your wife will make you feel like you're dating again! And if you want to splurge a bit, you two can rent a surrey bike and ride along the pier.
Another thing you might want to check out is the Electrical Water Pageant. Snag a spot along the beach at the Polynesian Resort, perhaps on a hammock, and watch the "parade" float by. The tiki torches along the paths are so romantic!
Or head over to
Downtown Disney, share a sundae at Ghirardelli's, then enjoy the many shops in the area.
Hope this helps. And happy 10th anniversary to you and your wife!