Outside: Zaino Z-2 polish and Z-6 gloss enhancer spray. The Z-2 lasts for months! Only available via zainostore.comWD-40 is great for tough, hard-to-get-off tar, bugs, and other stubborn marks. For pine tar, I use turpentine, natch, but I'm very careful with it and wash it off the paint immediately.
Inside: Whatever I have on hand.