gpilling - 1:15 am on Sep 16, 2010 (gmt 0)
@dpd1 they do make large size shrink wrapping setups to do that. You put the plastic bag over the box and hit the heat and it is sealed up. Bit pricey if I recall.
You might consider an air powered box stapler. I have had one for two years and love it. Bought it used on ebay for $50.