Tips for sellers:
Tip # 1: The closing time of the sale is very important. Never have a sale close early in the day.
Tip # 2 Collectables like coins, stamps and comics are some of the best sellers of ebay. A good picture is a must.
Tip #3 Know your buyers. If they are new to ebay there is a good chance they will have confusion and this will result in troube. Most Negative feedbacks come from new ebay users who do care at all about feedback.