Yopaz said:
Also Superman's "disguise" is too silly for me to be able to take it seriously. "Hey, that looks like Clark Kent!" "Don't be silly, he uses glasses and Superman doesn't". Also The Incredibles taught me that you should never use a cape. EVER.
Well there's a lot of explanations for his disguise. The first is historic/cultural, if you've ever heard of the "grandfather clause", basically when you introduce a new rule it doesn't apply to stuf that predates it. So Superman was invented in the 30's, how superheroes hadn't been hammered out yet and it was a simpler time, technology of the time meant that it would be easier for someone to get around without a mask. If you introduce a new character without a mask, you'd have to deal with this issue, but in general Superman just gets a pass.
In universe there's lots of reasons why his disguise works, firstly a lot of people just assume Superman doesn't have a civillian identity, that he might have been a normal person originally but why would he hold down a day job? Then Superman can vibrate slightly ont he spot at superspeed so there's never any really good photographs of him to compare with. Then when it comes to Clark Kent his entire behaviour changes (he's meant to be a pheonomenal actor), his voice changes raises in pitch, his entire posture is much weaker, he makes less eye contact, this makes you less likely to notice Clark Kent, let alone ponder if he's Superman. Then Clark has a very generic face (some elseworlds have actually explain this as an effect of the spaceship/birthing module making his assilimilation into the human race easier, but that's not really canon), a lot of people probably look like Superman.
Then there's the glasses, they aren't just clear lens, Clark wears glasses with a very strong prescription, the sort that distort your face and eyes, and anyone who knows someone who wears glasses all the time has experienced the shock when seeing them without them, it's very different. Also finally Superman and Clark Kent have been in the same place several times, thanks to Batman and robot copies of Superman.
As for the cape, it's usually made out of Kryptonian cloth that is as tough as Superman, he can use it to wrap someone in when pulling them out of a burning building or similar circumstances and not one of the scenarios posed by Edna would happen to Superman, he couldn't be pulled into a turbine or dragged along by a rocket.