J.B.
I suggest Creative Memories software called Memory Manager. It lets you organize photos by putting them in multiple folders. You can still have a folder for each child and have photos with both of them together in each folder. Then you can make another folder for events like Christmas and put another copy in this folder. It's a life saver! You can go my consultant's site at http://www.mycmsite.com/sites/michellekipp if you're interested. J.