Mould
My brother Mark and his wife Dee dropped in Tuesday evening. We sat in my study chatting and Dee pointed out that I had mould on the ceiling above my PC. In fact, it looks like this:
Now I had until then thought that mould was only a problem for the building, and didn't really affect the inhabitants (which is why I haven't done much about it). However, according to Dee it can cause respiratory problems, exacerbate asthma, and induce depression. All of which I've had in abundance of late.
It was never this large before but there's been a fair chunk of wet weather in the last year. And, though this is the worst patch, it's also spread throughout the house. On Wednesday I bought a container of bleach and a squeegee mop and over the weekend will see about removing some of this. It's a big job, but I guess it's got to be done.