I'll differ with most commenters here - don't worry about what you take from your apartment / condo / house while leaving. Get yourself and your family OUT. If it appears safe while evacuating, knock on your neighbors' doors, alert them to the fire alarm, and get them OUT.

In terms of pre-planning, try to be aware of who is home when - such as elderly or retired, or persons with disabilities who can have difficulty evacuating in a fire. You are not responsible for them, but people still in the building are the highest priority for fire fighters arriving on scene. You should tell the first available fire fighter about anyone you believe is still in the building (an apt number can help). Don't hold out to talk to the Captain or Incident Commander - they're busy, and any fire fighter can take your info and work it into their response.

The stuff you seem to want in your pockets will be handy if the apartment building is a total loss, but alot of times you can go back in, even into a fire damaged living space, and recover those things intact after the fire is put out. And if everything actually torches to the point of destruction, thank your lucky stars you didn't torch with it.