Chegg.com -- Renting textbooks rather than buying them

I have known about this site for a while now, but haven't used it until my friend told me about it.

A new semester or quarter begins.  You are in need of a textbook, but don't want to lash out hundreds of dollars.  What do you do?

You can buy the textbook -- use it a few times and then sell it on amazon.

OR

You can use chegg.com and rent them for a certain period.

Chegg.com has many books that your college or university uses.  They had 3 of the 4 books that I needed.  One of them I just bought on amazon.  You can rent it, use it, highlight it, mark it, just don't destroy it, and then after your school is over ship it back to them.  Shipping it back is free, although shipping to you might cost you some money...but wait... use code CC105371 and get a discount on your order.
What I do before I rent from chegg.com is to go to amazon.com and compare the prices.  If I think that I can buy the textbook used from amazon.com and resell it more than the price of chegg.com, then I will buy it from amazon and just sell it back.  If not, then...well that's obvious...I'll use chegg.com.

EDIT: 9/28/09 @ 10:29 AM:
Who wants to pay a wad of cash for textbooks? Not yours truly. I’m Chegging, baby.
Seriously, go to Chegg.com where you can rent textbooks rather than buy them. You’ll save between 65%-85%. Yes, I’m serious.
Just search for the books you need and order. Chegg ships them to you super fast and when your term ends you just ship them back for free. And guess what? They plant a tree for every book that’s rented. Pretty cool.
BUT – make sure you use this special promo code CC105371. You’ll get an extra 5% off your order.

You can also use the same code, CC105371, and get $5 more from the books that you sell to chegg.

Enough said…

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