Hyper key
Make use of your Caps Lock key and convert it, or any of your modifier keys, to the Hyper Key, combining all four modifiers: ⌃ ⌥ ⌘ ⇧
Personally, I use the Hyper Key in Visual Studio Code to add cursors to line ends with the following code:
{
"key": "ctrl+shift+alt+cmd+i",
"command": "editor.action.insertCursorAtEndOfEachLineSelected",
"when": "editorTextFocus"
}
I also use it to open files on GitHub:
{
"key": "ctrl+shift+alt+cmd+g",
"command": "openInGitHub.openFile"
}
Lastly, I use it to trigger parameter hints:
{
"key": "ctrl+shift+alt+cmd+h",
"command": "editor.action.triggerParameterHints"
}