WIN + E
Holding the windows key and “E” opens a new File Explorer window. This is not directly related to editing code, but is still useful to have, as it saves time when transferring files.
CTRL + SHIFT + N
Simular to the previous shortcut, while this shortcut doesn’t directly relate to text editing, it is still useful. This shortcut will create a new folder with the name field open. This can really speed up creating file structures.
SHIFT + LEFT ARROW / RIGHT ARROW
This shortcut works globally on windows on most text editors. It highlights the next or previous character. This is useful for selecting small groups of letters instead of trying to select them with the mouse, which can be annoying and take up a lot of time for repeated operations.
CTRL + SHIFT + LEFT ARROW / RIGHT ARROW
Similar to the last shortcut, this shortcut can help you select text while editing code. Instead of highlighting one character at a time, it highlights a group of characters, based on words (global) or on “smart” groups of words (editors like atom).
SHIFT + TAB
This one has definitely saved me lots of time, especially in HTML editing. This shortcut does the inverse of TAB — it decreases the indent of text. Unfortunately, this is not the default action on windows, and is instead up to applications to implement. The good news is it works on most popular text editors (like atom).