I got this idea from a woman at our church who recently had a baby. We brought over dinner along with a small crocheted teddy bear. When she returned our casserole dish, her Thank you note was a printed photo of her daughter with the bear folded over into a card. What a great idea!
I've also started to do this with the grandparents. It works just as well, I've found to send the photos by e-mail with a special note about how much the little munchkin has enjoyed her presents. It's also a nice way to show off what you bought with a gift card.
For more hints to make life easier, visit Rocks in My Dryer.