If you are a Power User on the Mac, chances are you look to use keyboard shortcuts whenever possible - I know I do.
As a keen user of the journaling application Day One on both macOS and iOS, I rely on these shortcuts to ensure I can capture important information as quickly and efficiently as possible.
Here is what I believe to be a comprehensive list of the shortcuts available - feel free to comment on more as you find them.
Command + N - New Entry
Command + Shift + N - New Entry in Window
Left/Right Arrows - Previous/Next Pane
Up/Down Arrows - Previous/Next Item In a List
Command + L - Open Location Editor
Command + Shift + L - Lock Journal
Command + D - Toggle Single/Dual Pane Modes
Command + E - Toggle Entry Edit Mode
Command + F - Open Search Popover Menu
Command + J - Open Journal Picker
Command + Shift + J - Show/Hide Journal Sidebar
Command + T - Open Tag Menu
Command + 1 - Timeline View
Command + 2 - Photos View
Command + 3 - Map View
Command + 4 - Calendar View
Command + B - Bold Text
Command + I - Italicise Text
Command + comma - Preference
Command + ctrl + F - Toggle Full Screen