If rotary cutters didn't exist, I probably wouldn't be a quilter. Cutting fabric patterns, with a scissors, is my least favorite part of sewing clothing. I've bought several brands of rotary cutters. Started out w/ Olfa, then ergonomic Olfa in 45mm and then 60mm. Then discovered Martelli's, which is easiest to use sitting down and doesn't make my hand sore after using it while pp for several hours. I still have my large Gingher's shears, but don't use it much anymore. I do use small scissors for snipping threads, even though I do have a scissors feature on my sewing machine. My cutting mats sit on my sewing table all the time.