Better to use OXO Good Grips Duster or leave it be?

[Coconut]

Would it be better to use the OXO Good Grips Duster every few days or just let the dust settle until the next wash? I wash my car every other week.

[purplenurple]

I would leave it. If you HAVE to remove the dust use a waterless wash, ONR, or a QD that you know will not marr the finish.