You know, I keep reading/watching U-Tube, and they always say to *square up your block* .... well, just exactly HOW do you do that???
I made blocks for two rags quilts (6" and 9" blocks), and did notice when I put them together, some were a little *off* .... sooo, do you use one of those acrylic squares??? If so, you sure would need a LOT of them .... I mean, blocks come in many sizes.
So, just HOW to you gals square up your blocks????