[rheavn]

Not sure if the "best way" means easy, quick or efficient.  Since I do not like to introduce water I only use the "wipe, rub, paint & polish method. Clean the bay one item at a time. I use a citrus cleaner to clean oily surfaces. Areas that you can't get a rag on, try spraying the citrus cleaner followed by compressed air.  Get creative in designing cleaning tools to reach the hard to reach areas. The more thorough you are the better the results.