1. Thou shalt never give reason for humanoid eyes of eBay drones to scrutinize your account. The human mind wants to see patterns in a steam of data. Less human contact with eBay means less chance for eyeballs to link your accounts. 2. Thou shalt use separate everything for each eBay account...and that means EVERYTHING (name, address, credit card, bank account). 3. Thou shalt keep all your DSR's above 4.6 and defect rate below 5%, as those are the magic numbers where you go "below average" and subject yourself to MC999 selling restrictions. Also don't forget that the defect rate has to be below 5% in BOTH your domestic and global ratings. 4. Thou shalt always keep in mind that even the lowest minion at eBay can escalate something which leads to your account closure. That means that even a snarky note on their customer survey may lead to a cascade of events that lead to your account closure. 5. Thou shalt remember that 50% of buyers on eBay are idiots who won't read your listings. You must include as much information into the pictures and title as possible, since that's what half the people will make their buying decisions on. 6. Thou shalt always contact customer to let them know if there are problems. NEVER let customer find out that their is a problem by package not being delivered on the day they're expecting it. Vast majority of people are understanding if you explain it to them before they are aware that there is even a problem. 7. Thou shalt not cut corners. Building a successful long term eBay account requires patience of a saint. There are no real short cuts other than your product being as described, the price being right, quick shipment and customer service. 8. Thou shall always promise less than what you can deliver. Never promise something to a customer and not come through. 9. Thou shall not compete with chinese sellers who can make a living off 25 cent profit per sale. 10. Thou shall shut up and read free information available on the internet and follow its teachings. Like anything on internet 99% of what is written is repetitive or useless, but the 1% makes up for it.