Every command in QuickBooks includes an underlined letter. To execute these commands, just press the Alt key, followed by each relevant letter. Here's an example:

Keystrokes Result
Alt+B+I Goes to the Banking menu, followed by Import Bank Statement
Alt+C+T Goes to the Company menu, followed by the To Do List

You can also combine (press together) the Alt key with a few other keyboard tricks to fly around QuickBooks at a rate of knots. For example:

Keystroke combination Destination
Alt-Tab Next field
Alt-Shift-Tab Previous field
Alt-Home Beginning of current field
Alt-End End of current month
Alt-Ctrl-Page Up First item on list or previous month in register
Alt-Ctrl-Page Down Last item on list or next month in register