How do you decide on your modular front panel layout?

Hi,
I'm planning my first proper module build, by learning and using a CAD program for the panel, KiCad for the PCB etc.

Today, I started designing my front panel, and I started to wonder about something. Are there any good guidelines on where to place things like knobs, jacks etc.? I know Serge usually has jacks on the upper sections of the module, but I have seen a lot of different solutions. Do you have any specific tips, or how do you personally think about it?

I do like the Serge look, and I'm already planning something similar to the "Serge grid", so I might follow the Serge layout as well, but I'm not sure.

Thanks in advance :)