Is it just a Sydney thing or is the dust in Australia on permanent mark 11? It seems I can't leave anything around the house for more than a week (OK, a month) without it accumulating a thick coating of dust and probably a few cobwebs as well. It's been so long since I've lived in the UK I can't remember if this is normal or not.
I say this because I stored a few things under the bed after Christmas and they now look like something even Indiana Jones wouldn't touch with a bargepole. Even the car accumulates a few cobwebs around the wing mirrors when parked outside and not used for a two or three of days. Goths would love it.