Android: Sleep Timer will automatically pause the media player on your Android phone after a set period of time so you can go to sleep listening to music or a podcast without fear you’ll wake up to a dead battery and an empty playlist.
The Pomodoro technique is a popular approach to improving productivity by working on tasks for a fixed length of time. Lifehacker reader (and frequent commenter) Jess shares a neat trick for timing your Pomodoro breaks in Chrome.
Android: If you’re looking for a snappy timer application that doesn’t require a lot of fine motor skills and tweaking to use, Tick! is a super simple timer app with an easy to use rotary-style interface.