Common typing mistakes

Most typing mistakes come from a handful of habits. Fix the habit and the mistakes fade.

Looking at the keys: Your eyes have to jump between the keyboard and the screen. Fix: keep your eyes on the screen and use the bumps on F and J to find your place.
Using only a few fingers: Some fingers end up doing all the work and have to travel a long way. Fix: give every finger its own keys and return to the home row after each key.
Swapping letters: Typing "teh" for "the" usually means one hand is rushing ahead of the other. Fix: slow down a little and keep an even rhythm.
Rushing: Going faster than your fingers can manage leads to more errors and more time spent fixing them. Fix: type at a pace where you rarely make a mistake, then speed up gradually.
Tense hands: Pressing hard and gripping tires your hands quickly. Fix: relax your shoulders and wrists and tap the keys lightly.

In Zomtype, a word typed with no mistakes earns a bonus, and the end of each run shows your accuracy, so you can see the habits improving.