You can click on a title letter in the “All apps” list from the Start Menu which triggers a nice zoom-out animation and displays the alphabet for quick access to a specific letter
You can narrow down search results to a single type (like files) by first typing the name of the section followed by a colon. For example:
files:jqu \← this would find jquery files.
This works for basically all section headers (apps: settings: web: folders: etc)
Win+Ctrl+D to create new virtual desktop
Win+Crtl+F4 to close the current virtual desktop.
Win+Ctrl+Left/Right arrow to quickly switch between desktops,