Diane,
Hi,
You responded as I anticipated. You are hardly alone in the belief that lifeless objects will retain energy such as done with Reiki practices. I will not argue that such objects as business cards will not hold energy but I will suggest that it is very likely only for a very short period. So perhaps to some degree it is really the people who find the cards much as fish sense the presence of bait. I do not think, though, that the objects find the people. Afterall, people must take the card for the connection to be completed. Although the resulting 'connection' may be the same (someone has your card) the energy dynamics of the the two possibilities I have suggested are rather different.
:)
Cheers,
RC