I have a very similar problem with my windows - our house is about 100 years old, and the windows are still the original single-glazed kind so have the same issue with mold growing on them very quickly, especially in the winter when it's cold outside and warm inside. I've found some pretty good sprays that get rid of it though. But yeah, a bit of a pain - although I do like the authentic feel.
Weekend should be good - the Formula 1 is back on so I'll be watching that and hopefully starting on some more anime. My backlog is slowly, slowly getting smaller.