New car:
1) Spray the car with a waterless product (Detailer's Pro Waterless Auto Wash or Chemical Guys Eco-smart), wipe down with pre-soaked, blue microfiber towels in ONR, dry with green microfiber guzzler towels.
2) (New cars, especially white) Carpro Iron-X Iron remover
3) Clay with ONR as the lubricant, Pinnacle clay
4) Sealant or wax (depending on what I grab)
Every couple of weeks (depending on the weather); Step #1
Every couple of months or so I'll run a clay bar over part of the car to see if it gets anything, a light coat of wax. Sometimes I use a PC to put the wax on, sometimes it's by hand because I want to take time to examine the paint and feel it.
Once a year I'll use a paint cleaner like Pinnacle Cleansing Lotion or I'll polish with a finishing polish like Menzerna 4500 or Optimum Finish Polish; wax or sealant.
On "not new cars": Steps 1,2,3- then polish with Optimum Polish II or Meguiar's 205 using PC with white pads; wax or sealant. Same routine as stated.
I does get confusing, everybody as their on routine, find what works for you- gives you the results you're looking for. Best of luck, guy.