Finder: Get to know basic – Side bar, application menu, views, file types
Finder: Get to know useful – Search, Finder preferences
Finder: Organise files – New Folders, rename and delete files
Finder: ‘Drag and drop’ files: Move files using two windows
Finder: ‘Drag and drop’ folder: Drag useful folder/s to sidebar for easy filing
Only store sensitive data on the cloud if it is a system protected by two factor authentication, like One Drive, or Google Drive.