(You're not imagining things. Not all the rows are finished!)
The only problem with this method is, the outside (long) edge of the triangles will be on the bias.
Having a bias edge on the outside edges of the quilt can result in a wavy quilt. It is possible to reduce this problem by sewing a row of stay-stitching right next to the outside edge.
Or you can use a setting-triangle tool and cut the setting triangles with the straight-of-grain on the long side (hypotenuse) of the triangle. Here's how I cut the setting triangles for my "Birds in Flight" quilt.
1. Cut a strip of fabric one-half MINUS one-eighth inch the size of square called for in the pattern. My pattern required a square cut at 10½" so I cut my strip 5⅛" wide.
2. I have several setting triangle rulers. The Nifty Notions ruler is similar to the EZ Angle Companion Angle ruler. But neither has a ⅛" marking.
3. I love Marti Michell's templates and rulers. The Diagonal Set Triangle ruler #8968 can be used for both corner triangles and setting triangles. To make a side-set triangle, place the ruler on the fabric strip with the 5⅛" mark at the bottom of the cut edge. Cut along the right side only:
4. Flip the ruler to the left side (the writing will now be reversed!). Carefully line up the notch at the top of the ruler with the cut you just made:
(see how I have the top notch aligned with the previous cut?)
5. And make the cut along the left side.
6. To attach the setting triangle, line up the 90 degree angle with the right-hand corner of the block.
7. Stitch and press -- because I'll be sewing rows together, I pressed all the seams on the odd-numbered rows to the left, and all those on the even-numbered rows to the right.
Come back Friday for the last UFO Parade of 2015!
From the desk of your