Keeping up with stuff

I often put an important item in a "safe place" so I won't lose it, and then forget where it is. I've tried using the technique below with Excel, but I don't always have access to the file.

So here's a good solution my hubby found using a passport as an example - make a private, searchable database of locations via email:

I put the item back and then I emailed myself:

Subject: Passport
Message Body: In your backpack in the closet.

I also applied the label "Stuff." This way when I lose my passport next time I can simply pull up my email and see where it is located.