I saw this technique, I think it was on TQS, where you lay two squares together, sew 1/4" around all four sides and then cut diagonally across twice = four half square triangles. OK so you have to work out how big to cut the squares for the required finished size, but that is all. Sew Simple and fast! I agree with feline fanatic that it is better to add 1" rather than 7/8", then square it up.