Recently had a bad case of recurring mould/mildew, mostly confined to a particular wall of the bedroom. Gave it a good scrub, repainted, tried to keep my windows open as much as possible (difficult when you live on a main road and mostly work from home/in winter when it's cold.)

Anyways, all's been well for about six weeks, although I've just noticed it's coming back with a vengeance. I started using one of those vapour e-cigs recently, that's probably contributing isn't it?

Is there a more permanent solution that cleaning/repainting every six weeks? because ain't nobody got time for that. Dehumidifer maybe?

Mould.