LegendGS, I recommend your suggestion every 5 or so thousand miles cause it will clean up mold, bacteria, and the like regardless of whether or not your filter is fairly new.
I am a big fan of a fresh cabin filter!
KNLNGUS
PS jmckell, try not to turd up the damper assembly or the cord - if you do, then call up Acura of Augusta and order a new 4 piece combo for like 15.00 (damper, cord, both the hanger and donut piece - forgot what its called).