Detailed maps of airport concourses served by your airline. Requirements for advance confirmation of your flight. Aircraft seat maps. A few hours before you leave for the airport, check to see if your flight is on time or has been delayed. Those greeting your flight are advised to check the web page as well to see if your flight is on time, delayed or even early.
Airline have two-letter codes.
Make a note of your airline's code, as this will be displayed in arrival and departure boards in the airport waiting areas.