Planny.co - Planny is lightweight Twitter scheduler. Grow faster with calendar planner, multi account management, advanced drafts and analytics.
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Day Night - A desktop app that kills the procrastination in you.
LeDimmer - LeDimmer is a small Windows application (<200KB) that sits in the system tray and simply dims...
Gone - An ephemeral to-do list
psKino - A program that darkens the whole Screen, except an user-defined area (which may include a video)...