I usually find handwritten cards at local gift shops or at various art fairs where local artists and crafters sell their own creations. Another great option is to search online platforms like https://handwrytten.com/ where you can find unique handwritten cards from talented artists. If you want to create your own greeting cards, it can be a fun and creative process. You will need a variety of art supplies such as quality paper, watercolors, colored pencils, brushes, and design ideas. Additionally, you can learn the basics of calligraphy to make your cards even more unique and sophisticated. Handwritten cards are always appreciated for their uniqueness and the kind words they convey.