I have done shredding days for 3 years now - stole the idea from a bank in Texas. I now do it three times a year, and the popularity keeps growing. Our first one this year was a few weeks ago. Had 475 people come thru over a 2 1/2 hour period, and shredded about 10,800 pounds of paper. I do have them sign a disclaimer, and in all my promotion of it, we limit it to 25lbs per person, although many try to abuse that. I send out press releases, advertise it, and also put out bags with handles in branches with the information regarding dates and locations imprinted on those bags.