Every time a member buys a chip from a non-member (even if it's a store like a collectibles place or antique store or junk shop or pawn shop), they should message the seller and suggest they join the club because they can post links to the items they're selling in the discussion boards, giving them additional exposure and sales, both on and outside of eBay.

In addition, when making your paypal payment, include a note about the CCA and include a link to the website (I think you can include links in notes to sellers during the purchase, but not positive). If you can't include a link, at least tell them to google the Casino Collectibles Association and tell them to visit the site for more information.