This is the easiest and fastest way I found to line my loaf pan with parchment paper. I use the pre-cut Reynolds cookie baking sheets. I cut one in half and cut one of the two halves into two. I clip the two smaller pieces onto each long end and then place the larger piece across the width and clip to keep in place. After I pour in the batter, I remove the clips and bake but you can leave the clips in.