How to increase your blog traffic?

I wrote that I will open comments again when the blog traffic becomes more than 100 accesses per a day.

However, I found that getting 100 unique accesses per a day is very difficult. At this point, I usually get around 30 accesses per a day. The map is showing from where people accessed this blog yesterday (actually last 50 accesses).

I am thinking how I can increase the traffic. I do not have the answer yet but I will come back to the principle of this blog (Write things that no one else knows as everyone else can easily understand) and think more.