For all my superhero consumption:
If there's an easy way that normal people would handle a problem, consider that method for your super characters.
I know there are exceptions, such as when you want to show that someone is out of step with reality. Still, if it's something as easy as, "Phone work and claim the person is sick to buy time" rather than "Have the shape-shifting alien try to impersonate the person before the boss," well, I have to think, go the simple way. No, it's not as much fun as watching Melissa Benoist get to play a person pretending to be a person that she pretends to be, but it makes me throw up my hands less.