You can use the menu bar and the Dock with your keyboard. Learn the shortcuts to activate the menu bar and Dock, and navigate around to select a command. You can also use various other keyboard shortcuts to get to other key functionality.
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Additional tip: after using F2 to highlight the apple menu, any menu can be accessed directly by typing the first letter or 2 of its name. Pressing return will display the menu. Any item in the menu can be highlighted by typing the first letter or 2 of its name. Want to quickly access an item in the finder's Recent Folders submenu? Press ctrl F2, then G for the Go menu, then press return, then R for Recent Folders, then the right arrow and select any item typing the first letter or 2 of its name
Dock items also can be selected by typing the first letter or three of their name.