I've been Spring cleaning - not because it's Spring, but because I'm aware that if we want to sell this house (which we will, one day, when we get around to it) then it's got to have no broken or dirty bits.
It's hard to do proper cleaning for two main reasons: one is that I don't enjoy cleaning, and anything I don't enjoy feels difficult; the other is that The Little Madam tends to get overly interested in the bucket of soapy water/filthy rag, so doing it while she's awake is really inefficient, but on the other hand there's no way I'll be doing anything un-fun while she's asleep.
One day I tried removing the grime from the wall underneath the bay window in the master bedroom. I ended up using a toothbrush. If you want a bit of advice on wallpaper, here it is - don't buy textured wallpaper that looks like billions of pixel-sized tiles, because the dirt gets trapped in the grout-y bits. Do you want to end up cleaning your walls with a toothbrush?
I don't understand why walls get so dirty in the first place. We don't draw on them or kick balls against them. Being vertical, you'd think that dirt would just skim down walls and end up on the floor. Does anyone know whether Teflon make wall coverings?