Feng Shui Business Cards?

[buxer]

I read Lillian Too's book and know that we can do feng shui on our business name cards.

However, her name card recommended size is less than 5.1cn for both length and width. It's square in shape.

Is it a must to follow such measurements?

Will it affect the company performance?

Comments please.

[blisssharon]

I read Lillian uses a square card.

It says that a card must have one side not more than 5.1cm. If better both sides not more than 5.1cm.