A few cameras have dual media slots and allow you to copy your pictures from one card to another. However, saving copies of your image files on a second set of memory cards isn't the most convenient or economical way to ensure that all of your photos make it home with you.
A better option is to carry a portable storage device--either one that's made specifically to store image files, a personal video player, or a hard drive-based MP3 player that can store image files. You may need to use a separate linking device to connect to an MP3 player.
Look for a storage device that will display the file type you're using (some devices can't display TIFF or raw files) and that offers a file-transfer verification function. Another option is a portable disc burner. Read our overview of
portable photo storage devices and get a comparison of a few current models.
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