Thank you cards are so important. Send them out within three months of your wedding. These people celebrated your special day with you, and likely gave you a gift to start your new chapter. Let them know you appreciate them, and tell them how much they mean to you.
You have the option to choose between handwritten or templated versions when it comes to thank you cards. Preferred option is handwritten, however either works as long as you hand sign it before sending it on its way. Make your message personal.
If they gave you money, tell them how you plan to spend the money or what you are putting it toward. If they gave a gift, let them know how excited you are about it. Express your gratitude for the thoughtfulness.
Everyone that attended your wedding will appreciate a hand signed card!