I just don’t want to mix them because I feel like it would make me less clean.
Relatedly, what’s the best way I can follow the Patrick Bateman skincare routine as a simplified version that’s actually practical to follow and contains the most important steps?
When I shower, my hands get dry with the rest of my body using the body towel. My hand towel is a separate smaller towel by my sink that I use after eliminating waste and subsequently washing my hands.
I don’t go as extreme as OP. I have 3 towel types: large body towel that I use to dry my entire face/hair/hands/body after bathing. Smaller hand towel by the sink for drying hands/face after using the sink. And finally a separate medium-sized hair towel to wrap my long hair for further drying after I’ve already got most of the water off with my body towel. I’ll wear that towel for 5-10 minutes after bathing. That towel isn’t necessary for short hair.
What you’re describing is normal adult behavior. Maybe that’s what OP meant when they said hand towel, but that’s not how I read it. Seemed like the implication was they were worried about cleaning their body with a single towel after a shower.