How to load a 4X5 film holder.
Remembering to go between the rollers on a Rollei 2.8 TLR
How to load a Hasselblad back.
How to load and process film hangers
How to load a 35mm or 120/220 stainless film reel
How to load a Leica M film camera ( although that does not seem to have changed)
Am I showing my age?
Feel free to add to the list, this is just the beginning, I am sure.