Yep agree with most of the above start realistic so if its a cheepie keep costs down by listing for .99p if higher start with a medium price so people will bid not just look make them think they are getting a bargain.
list things in the description do not bulk writing together
#use a reserve many a time I could not get home to end an item
most people bid at the last minute so leave it on and don't give up.
use 10 days for less popular items and use 3 days for those easy selling ones if the 3 day ones are not selling 12 hours before with no bids extend the time its free

Si