[Butane]

enroll in a leisure class at a university and get access to their software downloads and get it for free/use your new college e-mail address to get the student discount (30 bucks for a full copy)

Money saving tips from the BCI, who would have thunk it.
(though technically the license, if I remember right, "expires" when you stop being a student and you're "supposed" to upgrade to the full version)

Not sure on agreements outside of this but where I get my stuff and their policy:
http://wiscsoftware.wisc.edu/wisc/

What happens if I leave the Technical College or University?
If you leave the Technical College or University for any reason during the term of the applicable licensing agreement, the licenses for the software that you have acquired will transfer to you. For Microsoft products, you should make sure that you print a copy of the License Confirmation Document, located at the "License Agreement" section of this web site, so that you will have proof of original license. This will be important if you want to upgrade your products in the future.

I'm assuming its probably the same elsewhere. I use to be in real estate and still renew my license thru a course every 2 years.