Despite cleaning your records, the stylus on your tonearm cartridge will from time to time gather dust, dirt, and gunk, and need attention. Usually a good puff of air will blow away fluff, but something more effective is this handy cleaning device, which really does the job – the VP Dust Buster (by Vinyl Passion)
Consisting of a slightly tacky soft polymer plastic pad in a perspex holder, simply drop the stylus gently onto the surface and lift away – the gunk stays on the polymer surface and the stylus lifts away pristine.
The accumulated gunk washes off the surface of the VP by running under the tap and can be left to dry naturally. A handy YouTube shows it in action here. with a few extra tips
Lots of (UK) hifi dealers and Amazon sell it, around £20, but I can recommend my favourite supplier, Russ Andrews Accessories, whose service is impeccable.