Network management idea: proxy settings

My wife has a netbook I sometimes “steal” to have a tiny and light pc at work. (My 13 inches need at least a bag, my wife’s netbook stays… everywhere).
At work we have an http proxy that I have to set to browse and I usually forget to reset when I go back home 🙂
So, my wife cannot browse with and cannot easily fix the problem herself.
So, my question is: do you have two different network sharing the same proxy settings? Do you know something sharing? Do you know networks enabling/disabling their proxy to access the net? I don’t.
Hence, the idea and the proposal: can our network management code save/set proxy settings together with network (ip, mask, route, dns) ones?