What router disables wireless quick and easy?

Hey all, I need to get a wireless router (have a wired one) because my wife recently got a little netbook that she needs to stream stuff on. Our problem is that we'd rather not have it turned on all day broadcasting a signal. We only need the wireless to be working in the evenings.

I've done a little bit of research and I see that most routers allow for the wireless to be disabled, but it seems like it would take a bit of doing by going into the admin panels to turn it off. My wife would be using this and she's not one for making changes like that through software so what I'm looking for is a router that will turn off the wireless signal by pushing a button on the case of the router. Is there something real simple like that out there?