Below is a Google Docs spreadsheet that allows you to input the number of cards of everything you own in the game. There are summation formulas in place to keep track of how many copies of cards you have. I use this myself to keep track of how many cards I have.
It separates 1st Edition from Standard Edition for Tetsusaiga, has a Total for most of the other sets, but also tracks Signed and Unsigned/Non-Stamped cards, sealed products, and other goodies that were available for the TCG. It is by no means 100% complete as there were multiple different binders available that I am simply unaware of, as well as Inuyasha Party materials.
The Promo's tab houses all the Pre-Release cards, Organized Play, Inuyasha Party, and Rumiko's Creation cards.
Some boxes are blacked out. You can write in them and they will appear in White. These boxes are items that never released officially and may be found on things like uncut sheets or were never made. But since we never know what will be found, these cards/items are included in the summation cells in the columns/rows.
Below is a preview of the Inventory. Follow the instructions to download your own in the document itself!
**Huge shoutout to Salvador Aguinaga II for helping review this spreadsheet and catching errors. Huge thank you to Matthew Low and Sébastien Doe for their contributions on information regarding Promo cards!**