In some cases, the internet is awesome for helping this. If I can't remember an actor's name, there's IMDB. Just need to remember something about them.
But in other cases, like right now, google doesn't seem to help much. For instance, I'm trying to remember a term that Zionists use a lot. But I can't remember the term, and I can't remember the general definition of the term either. My brain just wants to dance around it.