Ask for and listen to their advice. Mail order crooks don't join organizations of their peers for fear of exposure. Deaalers who join and cooperate with their counterparts are honest. They're glad to help newcomers with a demonstrated interest in learning about dealers, products or programs, they haven't tried before, they ask someone they know and trust. DON'T be afraid to make mistakes.
Mail order is constant testing and accentuating what works.
Part of the profit for a successful ad or mailing is always of their earnings into research. Of course, testing costs can be minimized thought attentions to detail, cooperation with other dealers and good bookkeeping. Every failure can be a lesson if the reason is determined, analyze heeded in the future. It takes time to learn the basics, become known to the buying public and accepted by your peers. So many would -be mail order dealers come and go that it almost seems that you must be around a while before you can get started.