I paper piece my flying geese. No cut off points and accurate every time.
For scrap quilts, I make 2.5" HST blocks. One side of HST is a light neutral, other side is color/print/etc. Lots of contrast and easy to make. Lots of different patterns for quilts: 4 blocks with the colored sides (or neutral sides) facing center = diamonds. Rows of HST with colors all in same place = vertical rows. Alternating rows, color on right, next row color on left = zigzag pattern.
Hope these suggestions help.