Homebrew PCBs

If you have a table saw with a carbide tipped blade, you can make 
pretty quick work of cutting it all down to size.  

Jig saws, band saws, routers, and circular saws with HSS blades will 
dull VERY QUICKLY!  Carbide cutting tools are essential.

Using abrasive cut-off wheels probably won't work good long-term.  
They will probably load up or gum up with resins or copper and 
won't "cut" efficiently for long.

Shears really seem to be the best tool for the job though.