Folding a shirt collar, flipping up cuffs from pants, hanging up pants with a very sharp crease on a hanger, folding tablecloths and sheets...
how to deal with cereal boxes, Matzah boxes, cracker and cookie boxes, etc.
The Object Being Torn Has to Be Something Usable, Not Attached to the Ground; More Information About Small Packets (e.g., Sugar, Coffee, etc.);