Does it really make a difference what size memory card you use? To your camera, no; to you, however, it could mean the difference between getting the picture you want or running out of space on your memory card.When choosing the most logical size, take into account how many pictures you usually take at a time. Your needs if you are a world traveler will be different from those of a person who only uses a camera for holiday get-togethers. You also need to decide how big the files are of the pictures you take. Smaller files such as pictures for...