The one playlist I regularly use is, uh, every MP3 I have. So it would be impractical to post it here.
Instead, I shall confine myself to listing the full albums I've got in there:
A Garage Dayz Nite - Beatallica
Beatallica - Beatallica
Blues Brothers 2000 Soundtrack
Candyman Soundtrack
Cheer Up - Reel Big Fish
Chocolate Starfish and the Hot Dog Flavored Water - Limp Bizkit
De Rigeurmortis - TISM
Bram Stoker's Dracula Sountrack
Easy - Grinspoon
Eberron Soundtrack
Elephant - The White Stripes
Fire - Electric Six
From Dusk Till Dawn Soundtrack
Garbage - Garbage
Get Born - Jet
Greatest Hits - The Doors
Grey Album - The Beatles & Jay Z
Guide To Better Living - Grinspoon
Interview With The Vampire Soundtrack
It Means Everything - Save Ferris
Jagged Little Pill - Alanis Morrisette
Kill Bill Volume I Soundtrack
Kill Bill Volume II Soundtrack
Let's Face It - The Mighty Mighty Bosstones
Live In Las Vegas - Jimmy Buffett
Modern Artillery - The Living End
Modified - Save Ferris
New Detention - Grinspoon
Nirvana - Nirvana
Odyssey Number Five - Powderfinger
Once More With Feeling Soundtrack
Revolver - The Beatles
Rubber Soul - The Beatles
Significant Other - Limp Bizkit
Soul Caddy - The Cherry Poppin' Daddies
Sumo - The Superjesus
Tarantism - Tito and Tarantula
The Carnival - Wyclef Jean
The Ecleftic - Wyclef Jean
The Living End - The Living End
The Miseducation of Lauryn Hill - Lauryn Hill
The Score - The Fugees
Turn The Radio Off - Reel Big Fish
Version 2.0 - Garbage
Vulture Street - Powderfinger
White Blood Cells - The White Stripes
Why Do They Rock So Hard? - Reel Big Fish
Zoot Suit Riot - The Cherry Poppin' Daddies
Artists prominently featured in the rest of my playlist (another 740 or so tracks) include Creedence Clearwater Revival, the Darkest of the Hillside Thickets, the Bloodhound Gang, Joan Osborne, INXS, Richard Cheese, and random covers of popular songs, especially by American college a cappella groups.
The Pogues and Kirsty MacColl - Fairytale of New York (recently voted #1 Christmas song in Great Britain)
Kirsty MacColl - Can't Stop Killing You
Kirsty MacColl - In These Shoes
Kirsty MacColl - There's a Guy Works Down the Chip Shop Swears He's Elvis
The Cure - In Between Days (Without You)
Simon and Garfunkel - Keeping the Customer Satisfied
Simon and Garfunkel - Baby Driver
Simon and Garfunkel - The Boxer
Simon and Garfunkel - Mrs. Robinson
The Roches - We Three Kings
The Roches - Good King Wenceslas
The Tripletts of Belleville - Belleville Roundevous
Johnny Cash - A Boy Named Sue
Rosemary Clooney - Come-on-a My House
Ethel Mermen - Anything You Can Do
Team America - Everyone Has AIDS
Team America - America, F*** Yeah!
Joni Mitchell - Big Yellow Taxi
Dave "Baby" Cortez - The Happy Organ
The Electric Company - theme song
Schoolhouse Rock - Mr. Morton is the Subject of the Sentence
Schoolhouse Rock - Interjections!
Schoolhouse Rock - Sufferin' Until Sufferage
I try to stay as broad as possible. Lately it's been...
My Chemical Romance
Emmanuel
The Matches
Bandits of the Acoustic Revolution
Wynton Marsalis
Bach
Lucky Boys Confusion
Hawthorne Heights
Kanye West
Saosin
Wire
Stevie Ray Vaughn