How do you say thank you meaningfully?

Have you ever wondered about the most meaningful way to express gratitude? It's not just about saying "thank you," but rather, finding a way to truly convey your appreciation and the depth of your feelings. So, how do you go about it? Is it through a heartfelt note, a small gesture, or perhaps a thoughtful gift? And how do you tailor your expression of thanks to the specific situation or person? Share your thoughts and insights on how to make your "thank you"s truly meaningful.