This is my favorite Death Cab song ever, it's off of Plans 
All lyrics written by Ben Gibbard, music by Chris Walla

"I will Follow you Into the Dark"


A section: (the strum is weird, you have to time it to the lyrics, but these are the chords:

E-------------------------------------------
B-------------------------------------------
G---10----7----3----5------------------------ X2
D---10----7----3----5-----------------------
A---8-----5----1----3------------------------
E---------------------------------------------
"Love of mine, someday you will die...."

B section:

E-------------------------------------------
B------------------------------------------
G---7----10----3----10----------------------
D---7----10----3----10-------------------------
A---5-----8----1----8----------------------
E------------------------------------------
"If heaven and hell decide that they both are satisfied"

E-------------------------------------------
B---------------------------------------
G-----7-----10------5-----------------------
D-----7-----10------5------------------------
A-----5-----8-------3---------------------------
E------------------------------------------
"illuminate the no's on their vacancy signs"

For this part : "If there's no one beside you when your soul embarks" just repeat the first part of B

And for this part: "Then I'll follow you into the dark" it's:

E-----------------------------------------------
B-----------------------------------------------
G----3-----5-----10-----------------------------
D----3-----5-----10------------------------------
A----1-----3-----8---------------------------
E-----------------------------------------------

And then for the par that goes "the blackest of roooooms" it's 

E-------------------
B-----------------
G---7-----3----------
D---7-----3-----------
A---5-----1------------
E--------------------
(hold the last chord for a while)

That's about it! This is my first tab, I hope someone enjoys it!