How to avoid spelling mistakes (handwriting) 1-Write the word with the wrong letter larger and put an X through it. (5 times) 2-Write the word with the correct letter larger and circle or underline it (5 times) You slow down the process and become conscious of your mistake and the right word. I’ve got this trick from the book “Supermemory Superstudent: How to raise your grades in 30 days” by Harry Lorayne.