Amazon.com offers Okami for PS2 for $10.99. Shipping adds $4.98 or is free on orders over $25 or with Amazon Prime. This is the lowest total price available by $8.

Amazon.com offers a free subscription to Amazon Prime for current students, as well as parents and caregivers.  Benefits of Amazon Prime include free 2-day shipping on anything Amazon sells with no minimum purchase, as well as $3.99 overnight shipping.  Many of the deals I post here are for items under $25, and with a free Prime membership those items would ship at no cost.

[Amazon Student Page]
[Amazon Mom Page]

Ubisoft offers a free download of the Beyond Good and Evil Soundtrack (Right click, save as).  The soundtrack is in ZIP format.

Amazon.com offers a Buy 1, Get 1 50% Off Sale on video games under $20. Shipping is free on orders over $25 pre-discount.  50% off is taken off at checkout.

The sale is categorized by system:
PS3
Xbox 360
Wii
Nintendo DS
PS2
PSP
PC/Mac

Amazon.com offers a Buy 2 Get 1 Free Sale on Video Games with free shipping. The lowest priced game will be free at checkout.

The sale is separated by system:
PS3
Wii
Xbox 360
DS
PSP
PS2