Homebrew PCBs

While I was out yesterday, I saw that there were basically 3 kinds of 
spray starch available... regular, heavy, and a non-stiffening 
sizing. I'm not yet set up to etch, or I'd try all 3 myself and 
report back. Is there any kind of "test etch" pattern set up for 
testing these things? Different trace widths or whatever?

Also, I've heard at least some transfer paper is covered 
with "dextrin", a sugar. Just thought I'd pass that on...