[QUOTE=peaceandjoy;8687174]So many interesting comments!
There are a couple of rulers in my rack that I look at and struggle to remember what class project they were ever used for. Tucker Trimmer and Wing Clipper, for example. Yes, they worked perfectly - but they require calculating fabric needs and changing the size of pieces cut to allow for that trimming to be done. There are SO many other methods to accomplish accurate units. I really should just get rid of those.
I used to avoid making HSTs because of all the marking, trimming and fighting to get them all the same size. Since I started using the Wing Clipper, they are a snap to make. There is no marking, and no guessing about getting the 2 pieces exactly centered because the corners are already cropped off and align perfectly. The best part is that they always come out the size I want them without any additional fabric being wasted or trimming to do. I enjoyed the smaller one so much, I bought the larger size when it became available. Major problem for me solved so easily. Now I stay clear of patterns that look beautiful, but call for ten to twenty different fabrics.