A productivity boost for all writers -- deleting entire words in a keystroke:
Hot off the presses from Lifehacker headquarters LA (i.e., just discovered this morning in my dining room-cum-office) comes my favorite new keyboard shortcut, Control-Backspace (Windows)/Option-Delete (Mac).
Ctrl-Backspace/Option-Delete will delete the entire word to the left of your cursor in one keystroke, meaning no holding down and waiting to individually delete every letter from Supercalifragilisticexpialidocious - the swift shortcut will take care of the whole word in one fell swoop. Source