QuiltE, I thought I could get by without the special ruler but checked all my rulers I have on hand and those odd 3-patch blocks stumped me. The ruler came in the mail today and I tried it tonight before I stopped for the day and I have to admit, it sure makes it easy to trim out my blocks, even my simple 4-patch blocks. Problem with most rulers including this one is it slides around the fabric so I put some Nexcare tape on the bottom and that took care of that problem.
Tomorrow I'll finsih trimming out my blocks and start putting them together. The Cathedral Windows UFO will have to wait again. It is up on the design wall though and ready for the next step with tacking down the windows around the squares. Elmer's Glue is my friend when it comes down to glueing down the flaps (windows) around the center square so there's no straight pins to prick me.