you will not be the only one who didnt know 1/4 inch was the universal seam allowance for quilts but even knowing a 1/4 inch seam is crucial dosn't make sewing them easy--recently after quilting for 10+years i invested in a 1/4 inch foot -- bliss--there is some kind over addictive thrill when seams meet perfectly---also once you know the rule and why you can with adjustments break it