For moleskin notebooks, how do you keep track of everything throughout multiple subjects and days?

I used to take notes in Obsidian primarily, which made it very searchable. But I got tired of staring at a screen and not being able to easily draw on it. So I switched to a soft cover moleskin notebook. My only complaint so far is that as the days roll on, there are things I take notes on that I need to refer back to, and I forget about them or lose track of where they are in the notebook, since it's all just pages upon pages.

What is your solution for this?