Perfect Commuter Bike

I need help.

I want to make a list of characteristics that would describe the perfect commuter bike, so I'm turning to you, My Vast Readership.

That means I need comments on this one. Don't be shy. Yes, I'm talking to you. And you. Read, think, comment, go.

I'm not going to give examples because I want everyone going into this with unadulterated creativity. So, what would a bike be like that is perfect for commuting? For those of you who don't ride bikes much, what kind of things would make a bike an attractive form of transportation?

Thank you (in advance)!