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How to write thank you cards
Buy or make your card.
Making a card is a good show of appreciation if you have time and supplies. If you buy a card, make sure that any writing on the front or inside the card is appropriate (don't buy a birthday card by mistake! ).
If you cannot find a pre-made thank you card that you like, consider buying a blank card with a nice design on the front. Supplies for making your own cards are available at craft shops and some department stores, as well as some dollar stores.