PSA: Surrendering gives you less IP, TPing to a turret reduces the cooldown!
It's remarkable how many people don't know this.
When the surrender fails because the enemy team is attacking your nexus, I voted no because I want more ip. I own every champion, but I still have a few runepages to go and like 100 runes. Sure, you can get the neat double nexus explosion, but I have seen it happen enough now that I would rather get more ip for the inevitable loss.
And guess what? When you teleport to a turret, it reduces the cooldown on TP. Stop teleporting to a minion next to your turret, top laners.