Essential Swift code snippets you should incorporate into every Xcode project for improved efficiency and functionality.

1. Open Finder and press cmd + shift + G
2. In the search bar, paste ~/Library/Developer/Xcode/UserData/CodeSnippets/ and click "Go".
3. If the folder doesn't exist, create it.
4. Once the folder opens, paste all the .codesnippet files into it.
5. Restart Xcode
6. To access the snippets, start typing snippet in your code editor, and the newly added snippets will appear.