We covered using a stencil to apply solder paste for a PCB a few weeks ago. In the comments there was a debate about the virtue of using stencils as well as a question about how two sided boards ...

He can crank out a 6/6 mil double-sided PCB in 45 minutes flat ... [Jan] drilled up a board with holes ranging from 0.1mm up to 8mm, polished it, and gave it an acetone bath.