Always clearly print your phone number, fax number, website, email addresss and business address on sales letters etc. Don't ever hide behind a PO Box as this kills credibility and suggests "sleazy." Be contactable and also include a PO Box but you must be able to be contacted at an address where anyone can knock on the door. Integrity is Everything.
I am about to set up a clothing label, is there any website links or info available for people setting up a business for the first time? Also i`ve been told about a type of copywrite where you can post everything you want to be copywritten to yourself through recorded delivery, is this true?