Your best tips for wash, wax, polish, buff, detail in prep for a sale

[Osteomata]

OK I have bought some stuff, but am not sure I got it right:
Meguiar's Claybar kit
Meguiar's NXT Generation 2.0 Wax BUT i bought the paste and it has a spongy looking applicator. Should I have gotten the liquid instead? I still have receipts etc so...
A pack of microfiber towels. Are these just for buffing or is this for washing, drying, and application of the wax or polish as well?

I have not bought a special wash, just use dishwashing detergent usually. Bad?
And I have not yet invested in either polish or an orbital buffer. Still considering.

[VX KAT]

And I have not yet invested in either polish or an orbital buffer. Still considering.

Hey Jack....since I just got the Griot's random orbital buffer, I have this one I can sell you if you're interested. PM me.

http://www.amazon.com/gp/product/B00...SIN=B000077CPT