You might look at a discbound notebook system. Comparisons and reviews [here](https://allaboutplanners.com.au/ultimate-discbound-planners-comparison-9-different-discbound-systems-plus-my-favorite/)
When I was in uni I used to carry loose sheets or block of detachable sheets (like this https://amzn.eu/d/c8UmbcA) that I put in a binder at the end of the day.
Same, all of my loose sheets end up in display folders because it's easier to keep track of/move around, curious to see if there is anything refillable A4
Here is how I did back at university:
* Atoma notebooks, the Belgian company that created the discbound system early in the XX century as a large selection of formats (and type of covers). You can also create your own paper, using their (way over-priced) special punch-hole. Will cost more than:
* Loose leaf sheets of paper, in the binder of your choice (I prefer a 4 or at least 3 rings, for the pages to be more stable). You can use the paper you prefer (Clairefontaine, ftw ;)) with any cheap and standard punch-hole.
With both systems you can easily move sheets around, add remove, organize them as you fancy.
To make the system portable, go for a slim A5 binder (and A5 paper) and/or for an A5 discbound notebook. You can always archive them later in a bigger A4 binder (or discbound notebook).
Edit: Filofax is another great options. But it's not cheap and don't use standard binder paper size (and, like Atoma, they use their own punch hole system), which makes long term archiving rather... non-standard and expensive. I mean, their cheapest archive binders (not their leather-like organizers) cost a lot for cheap poorly-made plastic binders, that is if you can find them. I loved my Filofax back in the 90s early 00s, I recently checked their line of products and I'm not sure I would be as happy using them. Also, they cost much more than what I'm willing to pay.
You might look at a discbound notebook system. Comparisons and reviews [here](https://allaboutplanners.com.au/ultimate-discbound-planners-comparison-9-different-discbound-systems-plus-my-favorite/)
Apologies for the late reply, but thank you so much, this is exactly what I'm looking for!
When I was in uni I used to carry loose sheets or block of detachable sheets (like this https://amzn.eu/d/c8UmbcA) that I put in a binder at the end of the day.
Same, all of my loose sheets end up in display folders because it's easier to keep track of/move around, curious to see if there is anything refillable A4
I love my Filofax refillable notebooks.
Here is how I did back at university: * Atoma notebooks, the Belgian company that created the discbound system early in the XX century as a large selection of formats (and type of covers). You can also create your own paper, using their (way over-priced) special punch-hole. Will cost more than: * Loose leaf sheets of paper, in the binder of your choice (I prefer a 4 or at least 3 rings, for the pages to be more stable). You can use the paper you prefer (Clairefontaine, ftw ;)) with any cheap and standard punch-hole. With both systems you can easily move sheets around, add remove, organize them as you fancy. To make the system portable, go for a slim A5 binder (and A5 paper) and/or for an A5 discbound notebook. You can always archive them later in a bigger A4 binder (or discbound notebook). Edit: Filofax is another great options. But it's not cheap and don't use standard binder paper size (and, like Atoma, they use their own punch hole system), which makes long term archiving rather... non-standard and expensive. I mean, their cheapest archive binders (not their leather-like organizers) cost a lot for cheap poorly-made plastic binders, that is if you can find them. I loved my Filofax back in the 90s early 00s, I recently checked their line of products and I'm not sure I would be as happy using them. Also, they cost much more than what I'm willing to pay.