The last couple of bike shops from whom I've bought new bikes had a folder in a file catalog system for each bike. When you bought a bike from the floor, they'd go to their folder system, pull out the folder for that bike, and all the stuff that came with the bike was there (owner's manual, any hex wrenches, etc.). They'd either just give me the whole folder or they'd give me the stuff in the folder and they'd peel off the ID label and use that folder for the next new bike they built. I think that's a great way to build customer confidence in the shop (attention to detail, organization, etc.).