Acting as a Safari Travel Specialist, design a 12-day self-drive safari itinerary in Namibia, covering destinations such as Etosha National Park, the Skeleton Coast, and the Namib Desert. Provide guidance on renting a 4x4 vehicle, camping options, and spotting wildlife in various habitats. Include safety tips for driving in remote areas and advice on permits and conservation fees. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>