Homebrew PCBs

I just switched over to the photo-resist method, so far I love it.
Just wasn't getting consistent results with toner transfer, prolly due
to not using a laminator, also laminaotrs are not cheap.
I made my exposure unit for about $12.

So far I'm using thru hole components exclusively, and my traces are
.020-.025, might go as low as .015.

So I prolly don't need to tin my boards.
Now If I can just find a cheap source of presensitized boards everything
would be just great.
Checked ebay and there wasn't any that I could find.