When you need to put your enemies in a box surrounded by mirrors to reflect all their evil right back to them.
Aluminum Foil Tape works like a charm!
Doing cleansing work and reversing work is not enough, and the enemy may continue to send evil your way. To prevent them from throwing at you over and over, it's smart to bind your enemy (use an effigy of them - wax/dough/cloth image doll, or photo & name paper at the least - with their DNA or personal concerns) and shut them up in a mirror box. This will cause all their future evil to turn on them.
Mirrors are more time consuming and difficult, but Aluminum Foil Tape can be easily applied to the inside of any container to store your enemy and bury at a crossroads or cemetery.