Usually when I decide to fire one up, I already have an idea of what I want.  Might be based on size, maybe profile, but generally I've already made a subconscious decision.  
I keep a small 50 count on my desk full of samples from whatever boxes I'm smoking from.  If for some reason I'm just not sure, I rummage through it.
Once in a great while, when I want some NC tobaccy, I to go to the 
mystery NC humidor.  That's a 350 count that for years I've been tossing random NCs into.  Hell if I know what's in there.  If I remember right, the last two I pulled out were a Diamond Crown Maximus and a Padron Ambassador.  Always a surprise in that one!
Tom - go for the Tat Weasle.  
