This is obviously an opportunity to upgrade your camera and flash cards at the same time!:laugh:
The best solution is to tell your wife the camera and card are old and worn out. The camera is no longer taking clean crisp clear pictures and is cluttering up the card with all sorts of dirty grainy extra information making the files to large.:frown: The card is worn out and wont hold anymore information without it leaking out around the seams.
The only sure way to fix all your problems is a new camera and card. They will give you much sharper clearer pictures of the grandkids, dog, and rest of the family. Oh and your pens of course!:biggrin: I would recomend you showing her a couple of cameras your thinking of, say A nikon D4 starting at $6000.00 or a D800 at $3,000.00 or maybe you would only need a Nikon 1 starting at $400.00 and a couple of 128gb flash cards. You could let her help choose that camera.:laugh: