Please Tell Me How to Get Where I Am Going

Sometimes, I wish I had a car that had a gps in it. I have absolutely no sense of direction and I work for a delivery service. I am planning on buying a portable global positioning unit next month, but until then, I need a solution for directions. Does anyone have any advice about google mapquest driving directions? I have never used these type of services, so I have no idea how or even if they are effective. If anyone can offer me advice about the above or perhaps another solution that works well for someone who needs directions, I would appreciate it.