The 'pomodoro technique' starts dead simple but builds to quite a complex system. Might be worth a look. I've used the first dead simple bit myself to get thin

The 'pomodoro technique' starts dead simple but builds to quite a complex system. Might be worth a look. I've used the first dead simple bit myself to get things I don't like doing much done. I've suggested just that first part (four or five bullet points) to older teenager students for exam revision with some success.