Homebrew PCBs

I am going to get started on a new project that requires very small 
PCB's.  As the subject states - what's the best method of cutting PCB's 
to the size listed here - (3" x .1").  These will be used in a non-
electronic project.

I will be using single sided PCB's at .062" thick.

I am thinking of using one of those large office paper cutters (the 
ones that look like they have a 3 foot lawn mower blade as a cutter!) 
as the board will be less than 2mm thick.

I understand that PCB's can dull blades quickly, but this cutter is one 
that has been deemed obsolete.

Any thoughts?  I read the posts about using scroll saws, routers, etc.  
I was thinking that as my boards would be very thin, my method would 
work.  The only catch would be that I would need very straight cuts, no 
wandering edges.