Snap off shots and fill up your memory card. Once you are done snapping shots, or your card is full, transfer your pictures from your memory card to a computer. Then clear the card and it's ready ...
Additionally, a responsible camera manufacturer or retailer will make that information easily available to you as a memory card is generally not included with a camera purchase, ...
If you are the only person in the family or business with a camera and memory card, buy a single format reader. If you have several cameras or a friend who you will share ...