Some essential maintenance......

......required because the boy-in-the-attic told me yesterday that he's about to build me a new computer (from discarded parts).....now it might be a mac or it might be 'just' a pc, the court's still out on that as yet (but I'll be happy with either!).....and I might even treat myself to a new monitor and keyboard (as in 'without the greasy smears on the former and biscuit crumbs in the latter') when the day comes.....