After graduating college, I started work at a preschool in Minneapolis. My guitar had been gathering dust, but after a month of playing it in the classroom, I was amazed to see that my guitar and vocal technique was really improving. Even though I was just playing kid songs, the simple act of playing every single day was having powerful results. It certainly helped that five-year-olds are about the most forgiving audience one can hope to play for.
This article describes how one can dramatically reduce the amount of brainpower required for a given task through practice and “overlearning.”