I'm snickering as I read all of these comments, because I have done them all and more. And I still use several of these methods.
Depending on how lazy I am or how much time I have or how many I have to do. Mostly, I just put a ruler from corner to corner at the 1/4" mark & draw the line.
Haven't found the most efficient and most accurate method for me yet.
I've also tried a laser from Harbor Frght, templates, those paper things (thangles, I think), I have used that 1/4" quilters tape, a few templates and rulers....even one of those 1/2" rulers with the slot down the center for marking the centers &/or each side at 1/4".
they all work fine. But me....not so much.
