The only time you really need a tertiary is if you've adding something, like fruit, to the secondary, and want to rack off of that secondary trub/sludge to further clarify the beer. Other than that, you pretty much never need a tertiary. I've heard of people leaving their beers in secondary for multiple months without any problems.
WORLD DOMINATION BEER
#48 Black Helicopter Porter #49 Pikemen Porter
#50 Imperious IPA
#51 Razz Buried