Wow - this is a beautiful thing - great idea, EarthSky! I just want to reiterate the excellent points Reader99 made initially:

"IIRC, the purpose of tallying up the money and money-stored-as-goods in your life is to light that spark of taking conscious control of the fruits of your labor.

A thought on the inventory - if it's a thing you don't really enjoy, you'd probably get most of the intended benefit by starting with big ticket items, and dealing with the finer details later."

There are other motivators too, that other people have touched on: accurate insurance coverage; more easy to get compensated and/or do replacements in case of loss/theft; in case of emergency, you can more easily decide what items to liquidate; it's harder to ignore your "gazingus pin" habits (which helps immensely with Step 6.)

You can always access the steps for free through New Road Map's Financial Integrity Program Guide, which I think is a little more forgiving/flexible than YMOYL, and might help you get a fresh perspective if you're feeling stuck.

Personally, I just track major asset classes: homes, vehicles, tools, home & yard equipment/gear, office equipment, as I figure everything else has either little resale or will be fully "depreciated" within a year, i.e. broken -- (2 dishes in the past week!), worn out, or donated. I was once a second-hand sales person, but my SO insists it's not worth the time. Those books, though... I just finally unpacked the last boxes after 5 years of storage pending construction of bookshelves... sure it's a first edition recent Nobel Laureate Doris Lessing, but now it smells like mildew and the spine is broken...! (Did I mention gazingus pins? )

Best wishes to all for 5/5 accomplishments!