Oooh, I shall have to look into Bloc Loc! I got a 'HST ruler' free with a magazine that I haven't looked at yet - basically a ruler with a diagonal slot for you to draw your centre line. How do you all get a perfect centre line?
I came on to say THANK YOU for your tips and encouragement - I am now the proud owner of my first stack of 12 perfect 5" squares cut from a fat quarter.