You are most likely familiar with the OFFSET command in AutoCAD and have probably used it thousands of times or more. It is a great way to create parallel copies of an object. But when you need a true buffer this may not be the best solution. This is where the OFFSETGAPTYPE system variable comes to the rescue. By setting the OFFSETGAPTYPE to 1 you get a true buffer when you use the OFFSET command.
Give it a try for yourself. If you need to create a buffer for project boundaries, wetlands, impact areas or anything else, this might save you a lot of time.