Here are a few things I found that work great:
Mr. Clean Magic erasers: When I got my TGP, it had tar spots ALL over it. I just used 1 magic eraser on the tar spots and the car is MINT now.
Motorcraft 1 step Wash & Wax (made by Ford): This is great- you just wash your car like normal and it leaves a thin layer of well- it's kinda like a wax/rainX for your car- water just beads up and runs off the car- it's great!
Mothers California Gold Wax: Works awesome, smells great!
Swiffer dusters: Lol yes it sounds funny but these work awesome on dashes, door panels/jambs, vents, and glass. It takes the dust off EVERYTHING without leaving residue and it literally takes less than 1 minute to get the car totally dust free.
Vinegar: Very simple, removes water spots quickly and easily.
That's about all I can think of at the moment.