Wifi, I believe, is very high frequency, does not travel far, and is at its most toxic up close. You could get devices to give yourself more ports, linksys or some such. My problem is that I don't want to use the router at all (I don't trust that it will really not be broadcasting if I turn the wireless feature off), so I can only plug one device (one IP address) in at a time. That one device is my computer, and I connect to the other devices (TV, speakers) through that.

People often tell me "but it's all around us, so why bother" about various toxins. To me, that means I must do all that I can do, however small. We do have to be careful not to block all radiation though, because much of it is beneficial, the natural radiations.