Chuck,
It seems to me that you didn't miss much. It is definitely better to do write it down now then a day or so before, because you always leave something out.
As for using the slime, I would use it in a real emergency, not just having a flat. I have been told that the tire is ruined once filled with it as they can't patch it.
Numbering things that you lent out is good, also a picture of the person who is wearing or using such things as it is easier to show them the picture with your items. (joke)
