David's top tips for designers:
*Never prefix an email with "Dear Sir/Madam".
*Do your research and find out some info about potential buyers.
*Make sure your cash-flow can sustain the manufacture of any orders.
*Exclusivity is attractive to buyers, multiple stockists in the same city is not.
*Be aware of seasonal buying cycles and make appointments well in advance.
*Don't hard sell, give buyers time to think how your collection could fit into their store.
*Be knowledgeable and enthusiastic about your product.
*Visit art galleries!