Is there a better way to link this info together?  Maybe I'm going about it
the wrong way.  Specifically one table is the general job information, and
the second is the service information.  For a simple example, if you have one
table for location information, and one table for invoicing information,
having them both related to one "job number" or whatever, what would be the
best route to go in linking them if starting from scratch.  

Also, I wouldn't call myself a developer, but I am attempting to write a
decent database for my company, with the help of the people in here that are
actually qualified to do something of the sort.  I'm not the average guy that
thinks he knows more than he does, but I'm not a developer by anyones
standards.  I'm the drafting manager and I take care of all things electronic
here, including the setup of new machinery