General documentation / cheat sheets for various languages and services

Apple / macOS / Mac OS X Keyboard shortcuts reference:

Key name(s) Unicode symbol Unicode name
Control / Ctrl U+2303 (UP ARROWHEAD)
Option / Alt U+2325 (OPTION KEY)
Caps Lock U+21EA (UPWARDS WHITE ARROW FROM BAR)
Shift U+21E7 (UPWARDS WHITE ARROW)
Command / Cmd U+2318 (PLACE OF INTEREST SIGN)
Delete U+232B (ERASE TO THE LEFT)
Enter / Return U+23CE (RETURN SYMBOL)
Tab U+21E5 (RIGHTWARDS ARROW TO BAR)
Apple Logo U+F8FF (<Private Use, Last>)

Apple has co-opted 0xF8FF for its logo. This makes sense / is entirely appropriate for use in Apple software, but is perhaps not very cross-platform compatible if used in documents for the web.

OS-wide shortcuts

In most text editors, Control+Command+Space will bring up a palette for selecting fancy Unicode characters.

Finder hacks

Quickly remove all icons from the desktopref:

defaults write com.apple.finder CreateDesktop false && killall Finder

Put them back:

defaults write com.apple.finder CreateDesktop true && killall Finder

References