As a member of Clan Macduff I get:
A membership card
A membership certificate
A Scottish cook book
Clan By Laws
Instructions on proper highland dress
Quarterly newsletter
Opportunity to post my business' discounts to clan members in the newsletter
One page of Clan MacDuff Tartan address labels
and a few other goodies, as well as annual meetings and a tour to scotland every 4 years that we can sign up for.