Another vote for the Milty Zerostat. You have to follow the written directions though and they're counter-intuitive: Discharge the record after playing it / spinning it on the table. Repeat for the flip side. Don't know if this is the same as the Nagaoka.
The easiest way for me to use mine is clean the record, discharge it and return it into an antistatic sleeve for later play. Then discharge it again after every play. Works well.
Good luck!
