Avoid fancy words. They’ll be looking for the word “Search,” so use the word Search, not Find, Quick Find, Quick Search, or Keyword Search. (If you use “Search” as the label for the box, use the word “Go” as the button name.)
Don’t make me think
Being an expert in online usability Krug gathered his experience in a wonderful book. This summary of key thoughts will help you to remember most important principles and laws.