Homebrew PCBs

Hi I made my first PCB since I moved to USA.

The HP paper is good, the laminator I have bought is very, very good! I
am so satisfied.

Then I tried to etch with H2O2 + muriatic acid. I have a tank that
"bubbles" air. I have not used the heater.

Time: 4.00 minutes the board is ready. It is true this first board has
only thick traces, but the result is very good.

The only problem is that, after rinsing the board, I use some acetone to
remove the toner. It goes instantly but doing so it makes the PCB
"dirty", darker as it should be.

Any hint?

I have prepared a checklist with the tools and the step for the process.
I think I will take pictures next time and put together a small website.

bye
Alessio