[Perfectlap]

well you should use microfiber towels (but I don't use these on the paint). They'll lift all the stuck on dirt from leather and vinyl. I use Finish Kare #425. I buy that stuff by the gallon, it works on anything that isn't leather. I think you can get it at autogeek.net. Klasse used to sell this product called VLRP that darkened faded vinyl but the new VOC laws meant they had to redo the formula. I think Poorboys made a good interior product too.
For the carpeting use Woolite to three parts water and terry cloths. The carpets could use a bit more woolite but you'll need a carpet brush like Megauira's Gold Class.