I have been using these boxes to implement a technique in order to improve productivity.
It goes like....
All around the day, everytime you do one little thing, for eg. You decided to make up your bed right after waking up, you put one piece from the bigger box to a smaller box. And like this, every little thing you do all around the day, you can put one piece each time you complete that thing. This helps in making you better each day by noticing at the end of the day, how many pieces you collected today. This motivates you to collect more pieces next day and more the next day.

I have read about this technique in atomic habits and it helped me a lot.!

or else you can use these cute boxes for storage stuff too or hang flowers in them..