Short, practical write-ups on the things people actually use a repeating timer for — where the Pomodoro Technique came from, how to structure interval workouts, why breaks help more than they seem to, and a few uses that have nothing to do with a gym or a desk.
Where the method came from, the core loop, and how to adapt the timing to how your attention actually works.
Work-to-rest ratios that actually make sense, the real Tabata protocol, and how to run a circuit without watching a clock.
What happens to attention over a long stretch of work, and why an enforced break beats "I'll stop when I feel tired."
Cooking, meditation, public speaking, and eye/posture breaks — the same repeating-bell idea, applied elsewhere.