spanker Unfortunately it doesn't really work like that - we aren't able to add on the additional time to an existing subscription.
That being said - we've got some awesome new people on the marketing team we're going to be MUCH more proactive with various promotions/specials/holiday sales/etc. than we've been in the past. Which is to say that whenever your subscription is closer to running out, there's almost certainly going to be some sort of promotion going on or happening in the not-too-distant future.