Hello Codeforces! :)

Today, I'm gonna ask about how to increase typing speed.
I began to increase my typing speed one year ago. When I began, my typing speed was 20 WPM (words per minute).
Now my typing speed is 50 WPM. I think typing skill is important in contests. Because, in every minute points for problems decreases. I am increasing my typing speed in this website. Some people in standings stand before others, because of typing speed. And I am interested in Grandmaster's typing speed. If you type fast, can you give some advices about fast-typing?