Short of changing to non-static carpet (like they use in Vegas hotels) or wearing shoes with conductive soles (like they use in operating rooms) you'll have to touch something else that's grounded just before you touch that tonearm!
A painless way to do this is to make a fist and touch ground with the knuckle of your forefinger :~))
A painless way to do this is to make a fist and touch ground with the knuckle of your forefinger :~))