Back in the day I built a couple using sharpie and the radio shack etching solution. I did two using the laser printer transfer method as well. After doing a

Back in the day I built a couple using sharpie and the radio shack etching solution. I did two using the laser printer transfer method as well. After doing a double sided board, it drove me nuts- you have to solder small wires for your vias. Once you order boards once you'll never go back- it just solves so many headaches and possible mess ups. Give it a try!