I don't know why some people are insulting about people trying to put their own tabs on here.  That's totally ridiculous.  Anyone who takes the time to actually tab out a song FOR FREE is doing a favor for anyone learning to play.  Yes, this may be one of the easiest Nirvana songs, but both the solo's tabbed on this site are off.  This is the way Kurt played it.  Anyone who is a "real" Nirvana fan knows good and well that Kurt would puke if he saw someone bashing some kid who's just trying to tab out a song for everyone else's benefit.  And instead of bashing tabs why not just send a correction to the person because i'm sure they'd want it.  Anyway, i'm done rambling so here's the solo:

e----------------------------------------------------------------
b----------------------------------------------------------------
g----------------------------------------------------------------
d----------------------------------------------------------------
a-------------0-1-3--3-1--0-1-3---------------0-1-3--3-1--0-1-3--
E-1---1-0-1-3---------------------1---1-0-1-3--------------------

e----------------------------------------------------------------
b----------------------------------------------------------------1
g----------------------------------------------------------0-2-3--
d----------------------------------------------------0-2-3--------
a-------------0-1-3--3-1--0-1-3---------------0-1-3---------------
E-1---1-0-1-3---------------------1---1-0-1-3---------------------


This is off the top of my head, but i'm sure it's correct.  I don't have my geetar in my lap, but this is it.  Enjoy...and if i did "f" it up somewhere, i'm sorry...but just play it and see ;)