I stumbled upon Gixen and used it without cost a few times to win auctions. I've since donated for two years of mirrored service and am elated with the results. I've won about two dozen auctions since.
The first review of Gixen on this site speaks of malware and I have no clue what they are talking about--Gixen is a website and does not install any software.
Great site that I've accessed through desktop, laptop, and smartphone. I'm a believer.