Homebrew PCBs

I use the Pulsar paper with very good results.  The other trick I've
read about but not yet tried is to use plain gelatin, diluted 4:1, to
coat your own paper.

The key is that whatever paper you use should have a coating that is
(1) heat resistant but (2) water soluble.  Some "glossy" papers have a
clay coating on them, for example.

DO humidify your paper.  A few minutes in a closed box with a
container of water (don't get the paper wet) softens the fibers so
they lay flat and take a more even layer of toner.

DO use sufficient heat, else the toner won't stick well.

DO let the paper soak fully.  Pulsar paper just floats away when it's
done, resist the urge to help it along.

DO clean the board well, and dry fully.  Keep your grubby fingers off
the copper!  And the paper!  And the toner!