Is it at all possible to boost a wifi signal from a router? just I've lived with a super-poor signal for the last 2 years and I want to do something about it. Ideally I want something that I can just plug into the wall between my computer and the router base. Does such a thing exist? I tried looking at Maplins but they only had larger aerials to try and boost the signal. I need more than that. cheers guys n gals.