"Named after a pomodoro (tomato) kitchen timer, the essence of it involves considering in advance how many pomodoros you might need for what you want to get done, setting your timer for, normally, 25 minutes and then focusing on your task until the time’s up. Then take a 5 minute break. That’s one pomodoro. After you’ve done four pomodoros take a longer break, of about 30 minutes."

This article includes some helpful hints, to which I'll add two: 1. Use a meditation timer rather than a kitchen timer. The sound of a gong or wood block is a pleasant addition to the work day. (I use Insight Timer.) 2. Be flexible with the times. Some larger tasks need more than 25 minutes, and sometimes all you need to do is touch the project for a few minutes. Jugglers know that the secret to holding many balls in the air is to touch all of them one at a time.

For me, one of the biggest benefits of the technique is finding the discipline to work on only one project for a dedicated period of time rather than attempting to multi-task multiple projects. I feel better and I'm getting more done.

Article: The Pomodoro Technique