Notation:
b: bend
h: hammer on
p: pull off
/ or \: slide
*:Don't pick
r: release

School:
Verse:
4: 0 0 0 0h6~ 0 0h6~ 0 0 0 0 0 0h7
Chorus:
4: 8 8 8 8 5 5 5 5 0 0 0 0 3 3 3 3

Drain You:
Verse:
3: 0 0 / 4 4------2 2 2
4:-----------2 2 2
Chorus:
4: 2 0 then,

2: 0 0 0 0
3:
4:--------0 0 0 0 x about 8 I think and then,

4: 7 5 4

during the bridge just play this 4: 44444444444444

Aneurysm:
All of song except chorus:
3:--------3 3 3 3 2 2 2 2 0 0 0 0
4: 2 2 2 2

Chorus:
3:--------0 0 0 2 2 2 2 0 0 0 0
4: 2 2 2 2

Smells Like Teen Spirit:
All except post-chorus:
3:-------1-1-1-----4 4 4
4:-1-1-1------4 4 4

Post Chorus:
3:---------------3 3 1
4:-1-1-/-2-2r---------4

Been A Son:
Verse:
3: 5 5 3 2 0
Chorus:
3:------------3 2 0
4: 3 3 1 1 0 0
Lithium:
Verse/Pre-chorus:
3: 7r 7 5r 5 4r 4----------3r 3 5 5 \ 2 2 / 4 4 4 4
4:---------------5 5 5 5 5
Chorus:
3: 0 0 0 2 2 2

Sliver:
Verse:
3: 3 3----3 1 0---0 1
4: ----1 1------3
Chorus:
3: 0 0 2 2

Spank Thru:
Verse:
4: 5 5 5 3 3 1 1
Pre-Chorus:
3: 0 0 0 5 5 5
4:------------1 1 1 3 3 3
Chorus:
4: 0 0 0 5 5 5
Post-Chorus:
3: 3 3 3 3/6 6 6
4:------------- 6 6 7 8 a bunch of times then,

4: 3 3 1 1 0

Scentless Apprentice:
All except Post chorus:
4: 4 4 4 0 4 0 4 4 4 4 0 4
Post Chorus:
3: 3 3 3/5 5 5/7 7 7/8 8 8/10 10 10/12 12 12 / 15 15 12 15 12

Heart Shaped Box:
Verse:
3: 0
4:-------1------ 0
Chorus:
3: 0 0 0
4:------1 1 1 0 0 0 x3 then,

4: 3 3 3 0 0 0 x3

Milk It:
For the verses and intro and bridge just play around with the 4th string open and do hammer ons to various frets.
Chorus:
3:------6 6
4: 4 4 4---3 3 0 3 3 4 0

Negative Creep:
Verse:
4: 0 0 0/12 0012/0 0 0/12
Chorus:
3: 7 7 5------5 8 8 5
4:------4 7 7--------7

New Wave Polly:
Verse:
3:------------5 5r 3 3 3
4: 0r 0 3 3r 3
Chorus:
3: 5 5 3 3
4:--------3 3 3 6 6 6

Breed:
Intro/Verse:
6: 2 2 0 2 5
Chorus:
2: 0
3: --0 3 3 3 2 2/7*\0*

tourette's:
verse:
3:------ 2 2 2 2 3 3 3 3 2 2 2 2
4: 2 2 2

chorus:
4: 1r

Blew:
Intro:
4: 0 3 5 6 5 3
Verse:
4: 0 3 5 6 5 3 0 6 6
Chorus:
4: 5 6 5 7 6 5 6 7 5 7 6 7