There are a lot of ways to skin a cat and some pretty specific Porsche-Only tricks that will make your Boxster stand out in a crowd. My attention span is too short to answer all your questions at once.

Let's start with the wash and wax:
In general, no, don't wash after every drive, use a quality quick detailer that compliments your wax or sealant of choice. With that in mind, you obviously will have somewhat of a "garage queen" (that's not a bad thing!) so you can use either a carnuba based wax or a sealant. Carnubas are less durable but that is not an issue with you. I am one that feels Zymol is very over priced. I think One Grand
Blitz is one of the best value, high quality carnubas on the market. I also like the rich lustre and ease of application that
Pinnacle Paste Glaz gives. It is a bit more pricy but it goes a long way.
If you want a sealant, there are a few to choose from but my favorite is Zaino.
Klasse is another great option that I have used a lot. These will last longer and need less maintenance than carnubas.
For wheels, do NOT use anything that is acid based. These will tear up your painted wheels very quickly. I suggest you get Einmann Fabrik All Purpose Cleaner. I buy this by the gallon and use it on all my wheels. Also, a foam ended, (round ended foam "fingers") bottle brush at WalMart for $2 is the best tool fo getting inside and behind the spokes on Porsche wheels. Works perfect. Don't forget to paint those ugly hubs-ask me!
You may occasionally wash your car with a shampoo. Do not wash the top with shampoo it will wash off the water repellant that the factory applies. The factory repellant should last you six months or better with washings in water only.
Your rear plastic window will fog up frequently when new and is a pain to clean. Remove the wind block panel and clean the window with Plexus cleaner. Only use an abrasive window polish if you have scratches to remove. If you get this on the top use a toothbrush to scrub out.
I could go on. Feel free to write me or post in the forums.
Happy motoring!
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