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.