One can find many tutorials and movies about how a PCB should be made. As a person who has made less than a dozen boards I do not attempt to compete with professionals. I will just post some remarks, which can save you some time.
Printing - a ready layout of the board should be printed on a chalk paper. You do not need to run to your store and pay for anything specific. Use any page (printed!) from a color-magazine. All that is important is that the page is not too thin. Otherwise the printer will not be able to pull it through. Settings - default. Easy ;)
Preparing the board - In order to clean it I used a stainless-steal cleaner, something similar to what you find on a standard kitchen sponge. At the end remove any potential oils with a standard solvent.
|mirror image :(||okay but with errors||after corrections|
Etching(?) - I have put a 1/4 from a 100 g. bag of the magic powder bought on local ebay into a bowl, added water, which was at 40-50oC and placed the boards inside. I have stirred them from time to time with a plastic spoon. After 10 minutes the water got cold. I placed the bowl into another bowl with hot water. After 1/2h the unprotected copper disappeared leaving the toner-covered traces.
Cleaning - after every unsuccessful toner transfer and after the etching(?) is finished, the toner needs to be cleaned off. I have used the nail cleaner and it did the job slowly... Finding a bottle with acetone was the real revolution. The toner would be washed off instantly. Here is the final board:
Soldering- before reaching for the iron I have watched a few EEVBlog tutorials ("youtube soldering tutorial eevblog"). The enthusiasm of the blog's author is an engagement of its own. I bought a thin soldering wire (Sn60Pb40; wire; 0,35mm; 100g; F-SW26, No Clean; 2,5%), small tweezers... and soldered with joy!