what annoys me is when i see this tab is the nirvana (who are, just to clear things up, are my favourite band) 
tabsheets and people dont mention the ORIGIONAL artists behind the song (mudhoney) because it's such a
good song that mudhoney deserve alot more credit than they get

STRD TUNING

intro
I
I
I                                             1/101
I 3 3 3 3 3 3 3 3 2 2 2 2 1 1 1 

verse
I
I
I
I 0 0 0 0 0 1 2 3

chorus
I
I
I
I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 2 2 2 2 1 1 1 1

i'm not sure wich one but it blays one of these during the solo
enjoy