Thank you all for the suggestions.
I've learned a lot since I joined this group.
Here in the Philippines, my car gets dirty daily, medium to high dusting, sometimes road grime as well since there are spots on the road that has stagnant water which eventually produces mud. Specially the route that I drive daily is a shortcut but near a Dumpsite and Quarry vicinity. If anyone had already been here in the Philippines, you may have an idea of our road conditions here and traffic as well (hehehe) .
Just clayed my car a month ago and applied a polish but was not satisfied with the product I used. That's why I plan to re-polish using Optimum Poli-Seal but I plan to skip the Clay due to time constraint. If the Optimum Clay Towel is sold here, it would a big time saver.
Anyways, again thank you all.