F10 or Alt F10 or Alt toggles between the menu bar and the main window in a program.
Ctrl+Tab switches to the next window of a multiple-document-interface program.
Alt+F4 closes a program. F3 F3 runs Find again (in many but not all Windows utilities.
Ctrl+Alt+Spacebar enters the default value for a field.
Ctrl+’ (apostrophe) enters the value that appears in the same field in the previous record.
Ctrl++ adds a new record.
Ctrl+- deletes the current record.
Shift+F2 edits or creates a comment in the current cell.
Esc, then Arrow keys moves a comment that’s being edited.
Esc, then Esc again closes a comment that’s being edited.
Ctrl+Shift+” (quotation mark) copies the value from the cell above the current cell.
Ctrl+’ (apostrophe) Ctrl+’ copies the formula from the cell above the current cell.