I read that posting by Bonnie Hunter also and went right to ebay and bought the seam guide. Checked several of my machines with it and now I am all set for the "precise" 1/4". I did not see the mention of the 3M strips so thanks for posting that. Blue painters tape would probably work too but not as well without stacking several layers. Don't you just love Bonnie's blog? She lives just west of me.