Congratulations for your nice step to design a SFI business card. The points you must include are
1. Your SFI rank
2. Free ECA option
3. Penny auctions
4. Number products listed by far
5. Number of Facebook and Twitter Likes
6. Alexa rank of SFI and TC
7. Life time free membership
8. World's largest garage sale.
I hope these points are enough to bring people's attention.
