StickyKeys, for eliminating chording

Ergonomics tip: Turn on StickyKeys so you don't have to hold down Ctrl, Shift, or Alt. For example, with StickyKeys on, you can press Ctrl then C – you don't need to hold down Ctrl while pressing C. Thus, you can eliminate chording (holding down several keys), repeated use of which can lead to various ailments (such as the dreaded Emacs Pinky).

To turn on Sticky Keys in Windows

• Press Shift 5 times. The StickyKeys window will appear.
• Press Settings.
• Select Use StickyKeys.
• Press Settings.
• Clear Turn StickyKeys off if two keys are pressed at once.
• Press OK. Press OK.

On the Mac:

• Go to System Preferences > Universal Access > Keyboard

For Linux and other operating systems, see Sticky Modifiers Implementations.