The best way to get your numbers up on ebay is to buy things cheap.. For instance most of our books are under $1.00 -- or ebooks which are $1.00 or less and you don't have to worry about shipping.  This is especially important if you want to use the featured item and you need 10 feedback in a hurry.  Just buy things that are inexpensive and watch your numbers grow in no time flat!  Good luck!