Keith You need to be equipped with a catchphrase. MindMelda You must never let people know you go to the bathroom. You may only go on vacation to places where super-villains are planning their next scheme. Who Enter Here Joseph You must be able to provide your own arch-enemy. You must generate tension between yourself and someone else on the team.
Friction is good.
Get used to it. No matter how powerful you are, you must have an easily exploited and often inexplicably silly weakness, such as being allergic to a certain type of rock, or your powers cannot affect items of a certain color, etc. No killing other superheros with your claws when they wake you up from a nightmare. That sort of thing. Derek Always deliver a catchy one-liner when you're about to hit someone.