The flavor stash is fun. I didn't even start using it for a year or two, but it adds a lot of possibilities for you. For instance, I have 67 flavors in my stash (very modest compared to many folks here), and when I click on the "user" heading at the top of the ELR page and scroll down on the drop-down menu to "What can I make", it leads me to a new page that shows 1465 recipes that I can make with the ingredients I have on hand.
Wow!! That's very cool! I can see that would be very handy!