Today, I started write English diary on new not book because I finished last note yesterday.
But I noticed that this note is smaller than last one so my diary will become shorter.
Plus, it is not comfortable to write down on this note.
So I can change notes again.
By the way, the note was 27 Rs.
It's almost same as Japan's one I think.
Then, I also finished using my ball-point pen.
It is not correct to guess how much did I study well from consumption of pens.
However it can be one of the bases for it.
When I was studying to pass my university exam, I had a target to use specific numbers of pens.
I think I can use this method also now.
I plan to consume more than 30 pens.