10 well thought out thank you note templates for every type of friend. Create the right message for the right person with our fill-in-the-blank templates.Thank you for standing beside me in the greatest of moments and the darkest of hours. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. Dear Family and Friends,. I want to express my sincere thanks for your family's donation. I want to thank you for allowing me to be part of your career journey and appreciating my help and knowledge. I appreciate everything you do. Thanks for checking up on me.