labcats | It's a Simple LIttle System

I know that FATE isn't that complicated, but I find myself getting confused, what with skills, stunts, maneuvers, aspects... So, as far as I can tell:

Skill: You have it, you use it, you roll dice, you don't pay fate points.
Stunt: You have it, you use it, it lets you break the rules in some way, you don't pay fate points.
Assessment / Maneuver: You use Assessment to discover an aspect. Even if you just made it up on the spot, it was always there. You use Maneuver to make a new aspect, such as tossing sand in someone's face to make him temporarily blind. I forget the fate point cost here. Or does it cost a point? I think

mnemex said it cost an action (if in combat), not a fate point.
Aspect: Along with the Fate point, the heart and soul of the game. Invoke your own to help you somehow, paying a fate point. Pay a fate point to Compel someone else's, and take a fate point if you're compelling your own. Tag is compelling someone else's if you're not the gm? Something like that.

I don't know why this is still confusing me. There aren't that many factors here.