Regardless of which works best for you, it is fun to check out the greeting cards currently available to spark some great ideas for the kind of photo you want to take. Also, the size of your favorite card may be a determining factor in your choice of holiday photo; for example, if the card is fairly small, then you want to choose a photo that fits that size. And some cards are large enough that they offer the choice to include more than one photo if that works for you..