Hey, you asked...
I used to win a lot of bike shows "back in the day". I learned from those who were winning around me. These things work for the bike and the car. They don't leave films behind and don't require multiple buffing sessions like Plexus and some others do[1]. I use a thick pile terry cloth towel for cleaning. The long nap helps protect the paint. I rinse the bike well before washing. I lay a wet towel over the crusty bits to soften them first then rinse and repeat until the bugs and crust rinse off without "scrubbing". By the time I get to the washing part, a lot is already clean. I swap to new towels frequently (for the same reason Bob pointed out). I then go from top to bottom so the road grime on the underneath bits doesn't get on anything and scratch the more visible bits.
I personally avoid using any fabric softener when washing these terry towels. I find that they fill up with the softener and seem less able to absorb water than if simply washed and dried without softener.
Once rinsed, and washed, and rinsed again, I dry (more clean, deep pile terry towels) I then detail with these:
Lexol cleaner and conditioner on the leather Russell
https://www.lexol.com/Category_leather.aspx
Meguiar's Mirror Glaze #17, #10, and #18 (for touch ups) for clear plastic on the windshield, face shield, and headlights
https://www.meguiars.com/estore/product_list.cfm?sectionname=Professional%20%28Mirror%20Glaze%20Brand%29%3EClear%20Plastic%20Care§ionID=34101
Mother's Back to Black plastic conditioner for the black bits of plastic (excluding the leather seat)
https://www.mothers.com/02_products/06108.html (won't yellow or lead to accelerated aging like ArmorAll or Son Of A Gun do)
Flitz on the chrome bits (and wheel rims)
https://www.flitz.com/p-16-flitz-polish-paste.aspx
I also recently found out about Rejex and have been really happy with it on the painted parts.
https://www.rejex.com/
[1] I find that a face shield cleaned with plexus later gets hazy and needs another buffing to clear it up. That means everything else cleaned with it does the same thing but might not be noticed since you're not forced to look through it. The things I've gravitated to over the years don't leave hazy films behind when dry.