Okay, I had originally read something somewhere in the books that led me to the conclusion that invoking an Aspect could give the player a +2 to a roll (or some other bonuses that aren't really important at the moment), but Tagging a temporary Aspect gave a +1.
Tonight, during a session, one of my players argued this point and directed me towards page 106 of Your Story, where Harry tags for a +2. This resulted in two other group members, who had originally thought as I did, to suddenly agree with him. So I let it go and ran with it, but now, I'm completely unable to recall where I read the +1 or even find it again.
Here I thought I had this Aspect stuff figured out and now there's this curveball flipping things upside-down on me. Can someone set me straight so I don't make this mistake again?
Thanks!