We’ve got four windows in now (living room, kitchen, bathroom and cellar), although nearly all of them still need sealing and finishing off.
A cat flap has been fitted in the cellar one. I’ve just started to train the cats in the way of the flap but it was slow progress: for example, Carbon was that scared of the flappiness that he ran away from it. I think they’ll need some more one-to-one tutorials with a side order of bribery to master the basics. A few more brain cells probably wouldn’t hurt either.