If you're playing Turing Machine, these card separating tabs will save you a lot of time and trouble when sorting the verification cards during tear down of the game.

I saw this brilliant idea from this absolutely fantastic video here, which I highly recommend:

https://www.youtube.com/watch?v=0tndiaAxWu4

It's pretty straight-forward, but here's a deeper explanation anyway:

When setting up the game, insert one of the tabs for each verification card you take from the deck of cards. After the game is complete, you want to insert all the verification cards back to the deck in the correct order, and this is time consuming. But now, when you have the tabs, you just quickly pull up the correct location for the card (where you took it from), and you'll have it sorted back in no time.