I did a test on my TV screen, taping it off in half. One half was cleaned with glass cleaner, and the other I used Meg's Mirror Glaze Plastic kit (#10 Clear Plastic Polish followed by #18 Clear Plastic Detailer). After a few days, the difference was amazing. The treated side was still dust free, while the untreated could be wrote on. I have now since added #18 Plastic Detailer to my normal cleaning regimen in my car (clock, stereo, gauge cluster). Naturally, I had prepped them with #17 and #18 as a full blown detail to remove the haze/swirls on them. It really stays much cleaner; definitely worth the minimal effort (wipe on, off).
For those that don't like Meguiars, I believe I've read that Plexus has the same anti-static properties. Other clear plastic cleaners may be similar. I happen to use Meguiars because of the consistent, great results I get, along with local availability.
Dave