Ofcourse you have the basics like Pink Floyd and such which are always great but I have found that these 10 albums always provide a great trip.

1. Janes Addiction- Kettle Whistle
2. Flaming Lips - Transmissions from Sattelite Heart
3. Sublime - Robbin The Hood (really anything Sublime but this is my fav.)
4. Bob Marley - Kaya (or atleast a greatest hits)
5. John Frusciante - Curtains (or Niandra Leds & Usually Just a T-Shirt if you wanna get wierd)
6. Porno for Pyros - Good God's Urge
7. My Bloody Valentine - Loveless
8. Primus - Pork Soda
9. The Pixies - Come On Pilgrim (or Surfer Rosa)
10. Smashing Pumpkins - Siamese Dream (Also some b-sides "The Boy", "Said Sadly", "Blue", and "Cherry")