I can offer you my cosy flat in Baden. Its perfectly located to explore Zürich, but a lot cheaper. There are several trains every hour, you need not even 25 minutes from the flat to Zürich main station. Baden itself is a very lovely, tiny City with plenty of Cafes, Museums and more to spend some time with. If you have any questions, feel free to ask and I try to help as much as I can (train tickets or whatever).