Car Cover ?

I recently just got a Cordoba and am looking for a decent car cover for it. My detached garage will not be built until next year. It isnt a show quality car but still looks good and I would like to protect it for the winter. I am looking for a car cover that wont break the bank but will keep her dry and clean. Something that is easy on and off since I still plan on driving her on the weekends. I know walmart sell a cheap one ($30) and is advertised as weather resistant. I just remember hearing some car cover horro stories. Any advise on a brand?

Thanks