These notecards are really easy to use. You can write down your warm wishes, sincere thanks, or sweet messages on them. Just grab a pen and start writing. When it comes to sending them, you can put them in an envelope and send them through the mail. For storage, keep them in a dry and cool place to prevent the paper from getting damaged. Don't expose them to direct sunlight for a long time as it might fade the colors. And be careful not to get them wet. With proper care, these notecards will stay in great condition for a long time.