AuctionCut

Well, you need to choose a demanding product and also offer competitive package that no one in your market is doing. such as free and fast local shipping. Also learn to write a compelling copy and headline. Multiple listing with different ending time.

SEO your ebay listing, post your listing as many as you could in the internet to drive traffic.

etc.

Hopes that help

Would agree with you hunter fast efficient shipping is just one solution. You can even gain more if you a competitor research is preformed along with getting a trend of various market patterns available by Analysis such as SWOT, PEST etc gonna help a lot........