zCover TypeOn pre-printed Language Keyboard protector is unique in having pre-printed letters on the cover, the layout of which perfectly coincides with that of the standard Apple MacBook US English Keyboard.
Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI). The program frequently alerts you to take micro-pauses, rest breaks and restricts you to your daily limit. Please refer to the feature
R. Zafarani, and H. Liu. Proceedings of the 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 41--49. New York, NY, USA, ACM, (2013)