Every three months:
Remove bugs and tar with Tarminator
Wash with Blackfire shampoo
1- Blackfire Clay
2- Blackfire Gloss enhancing polish with White pad on Porter Cable DA
3- Blackfire All finish paint protection applied with black pad on DA (cure for three hours before buffing off)
You can apply by hand, but you get better results with a dual action.
I may switch products now that I am running low on polish, but this set up gives a deep shine and is easy enough to use.
http://www.properautocare.com/blaccomkit.html
I try to wash my car every week, but it's usually every other week and use a quick detailer like Blackfire Deep Gloss Spray.