You can see at http://en.electroni-city.com details about using VINYL STICKER to home made pcb. It's easy and cheaper then other methods. There is on Youtube a small movie about this method: Youtube-Video "Vinyl sticker pcb" Youtube-Video "Realizare cablaj tip vinyl sticker pcb 1 of 15" Romanian version with more details
The already available methods in the market are not that costly these days and adding a VINYL sticker is an addiction for most hobbyists. If this method has better reliability and a longer life, it’s worth a shot.