Here are two shortcuts that make it easy to adjust settings for connecting to projectors, connecting to wireless networks, and preserving battery life:
Windows Key + X: Open Windows Mobility Center
Windows Mobility Center allows you to adjust display brightness, system volume, battery plans, wireless settings, and more.
Windows Key + P: Adjust Presentation Settings
Although you can manage your presentation settings via Windows Mobility Center, this shortcut is useful if you connect to a projector or second monitor and want to quickly send video to one or both displays.
For more useful shortcuts, check out Microsoft’s support article.