I had the idea because it's my personal experience but I finally decided to create a solution because a friend very recently shared with me that she wished there were somewhere to save links she’d actually return to. Every existing app gets the saving right and the returning not so well.
For people like us, the issue is not the behavior of saving or organizing things, we actually have that habit. The thing is, we never go back to them, and the current solutions don't have the hook to open and engage with the content you saved.