Does anyone here know why I should wrap aluminum foil around my hotel door knob? Or carry a plastic closure from....

[intrepidity]

1. Oh! I do I do!

Or rather, I can make guesses:

1) foil, crinkled, seems less likely to effectively transfer microbes when touched, so it's probaby a safety measure?

2) those bread bag clips come in handy for various things. I use 'em for keeping the end of a roll of tape easy to find.

3) not sure how true this is, but supposedly certain criminals mark vehicles of potential victims in ways like this.

Any more questions?