Newbie to namPros and domaining world

Hey guys, Umer here from Australia. I have been freelancing for couple of years dealing especially in branding business so thought about putting my skills in to domaining. Do you guys have a checklist of dos and not dos around here in the domaining world? Although that wouldn't apply for the first purchase as i have already started off and bought one domain! :D Can't wait to get in touch with people to conquer the world together!