Limiting the amount of "nerdy" references you can make during a specific time period. This can be a personal goal or imposed by an annoyed friend. The effort is protect yourself from appearing lame.
EX: One Harry Potter reference a day; two Star Wars references if they're particularly clever; and one Twilight reference if it won't cause sexuality confusion.
Friend: How did you get home from the bars last night?
Me: I apparated.
Friend(Nerd Quota Enforcer): That's one.