Getting from point A to B can be easy - with helpful directions from you, of course.
Name permanent landmarks, such as stoplights, bridges and railroad tracks.
Be redundant ' give street names in addition to landmarks.
Add warnings to your directions. Name places that will be seen if one goes too far, and mention confusing intersections.
Consider giving distances in miles between streets and landmarks.
Provide your phone number with the directions in case the person gets lost, despite your best efforts to guide him.