When you send a greeting card to a business contact, don't write a lot. A short message is sufficient and if you write a long message you take a chance of diluting the impact of the card.
The way this works is actually sort of funny, but try this as a rule of thumb:
- Standard card: Medium length message, no more than two paragraphs.
- Custom card: Short message no more than two sentences.
The closer the photos and graphics are to the heart, the less you want the reader's head to get involved, so don't write much.
