Whoooa!
I don't know where else to share this, but I just discovered something neat about the web browser and potentially other similar apps. I use the PS4 web browser a lot when trying to find collectibles, or as a guide on getting last weapons in Dynasty Warriors, and I've often bemoaned the fact that you have to reopen it and reload each page every time you jump back into the menu from a game. Then, by accident, I discovered that double-tapping the PS button jumps you directly between game and web-browser, without having to reload any pages. I don't know if it works for any other apps yet, but it's a neat little feature that I didn't know about.
If this is well-known knowledge, uh... are there any party hats left?