Here is I.K.W.Y.L tab, very easy and fun to play.
*Placebo tuning*
Tabbed by PureMorning 


Intro and verse:
E-----------------------------------------|
B--889--2x then-889-----------------------|
G------9~----------5-2x-------------------|
D-----------------------------------------|
A-----------------------------------------|
E-----------------------------------------|


Refrain Riff:
E------------------------------------------|
B----12-15-8-12-17^^ -12-15-8-12-----------|
G---------------------------------9--------|
D------------------------------------------|
A------------------------------------------|
E------------------------------------------|


Repeat verse
Repeat Refrain riff

Now some power chords!
D, G, D,G 



Repeat Refrain riff.

That's it!