Circuit Project Electronic

This tutorial is intended to cover the creation of a single-sided PCB based on an existing layout. For information about creating a layout, you should seek tutorials elsewhere. I regularly use this method and have great success, easily handling traces 10 mils wide, surface-mount parts, etc.
Etching
Print the pattern on the full side of the Press-N-Peel. To make the sheet last as long as possible, I print on a piece of plain paper, then cut out a piece of PnP to the right size and tape it onto the printout, dull side up, using scotch (clear) tape. Then I print again, this time the pattern is printed onto the piece of PnP. Setting your laser printer to its darkest setting will get more toner on there, which can help if you have adhesion problems, but in general with PnP I find it’s not all that necessary. It is important to trim the edges of the PnP quite close to the edges of the pattern - during ironing, the free edges of the pattern will tend to warp and can cause adhesion problems with traces near the ege. [...]
Source: http://eegeek.net/content/view/34/31/