Universal Packing List

I would consider the output more of a "Mindsweep Triggers List" than an actual packing list, but it's an interesting concept.

http://upl.codeq.info/

I ran a couple of lists just to see what it suggested. Looks pretty good - very comprehensive. I especially liked the recommendation under "Eating Utensils" on one of the lists - the only item it suggested was a "corkscrew".