There was a sweet spot around the middle, with the best performer being the paper airplane that started with a 6.6 x 8.5 inch size. The regular size 8.5 x 11 inch paper came in a close second.
There was a sweet spot around the middle, with the best performer being the paper airplane that started with a 6.6 x 8.5 inch size. The regular size 8.5 x 11 inch paper came in a close second.