I find that I do not have enough time to do my school homework. Self-improvement issues aside, one way is to minimise wastage of time, one aspect of it comes from transport which takes up 2h back and forth in a day. 

I have been doing written assignments on this kind of clipboard currently(back view)

[![this](https://i.stack.imgur.com/DbHE8.png)](https://i.stack.imgur.com/DbHE8.png) 
which at the start only holds a pencil and eraser. However after some time I realised I need more stationeries like highlighter of different colours, pens of different colours to annotate notes, or even an extension to put a phone so that I can do some handwritten notes while watching a webcast. Most of the time I would be standing due to peak hour traffic and lack of seats.

I have considered things like this but I don't really know if they can solve my problem, worth my time finding one due to lack of availability and worth my money(costs $37 [here](https://www.aliexpress.com/item/HUA-JIE-A4-PU-Leather-Portfolio-Multifunction-Document-Folder-with-Card-Slot-USB-Cable-Holder-iPhone/32828246799.html)) 

[![enter image description here](https://i.stack.imgur.com/7JXRO.png)](https://i.stack.imgur.com/7JXRO.png)

It seems like a substitute for a bag directly for the clipboard, but seems too bulky(equivalent to the size of 2 A4 sheets side by side) and only suitable only when there's a surface to rest the entire structure on, like a table. In the standing position I definitely need a left hand to support it, and a bigger file holder like this will only make the tasks harder.

Can anyone think of a cost effective solution to my problem?