$20? ach! ach! ach! (that's me, chocking. i said i was cheap, didn't i?) :mrgreen:
this does give you perfect squares. honest. i do 6, but i have done 8. i'm afraid to do 12, like she says she does. i do starch the life out of the fabric because it keeps the fabric from slipping around. and it keeps those biases very stable. and i love those little notches.
when i'm in a hurry, i do the no-marking method (the sketched one). i lay the folded fabric on top of the pile and cut, then finger press the next one for the next pile, and so on.