After opening an account at Chase a few weeks back, I received a mass mailing from same. "$100 if you open a new Chase account!" So I headed to Chase and asked if it would be possible to grandfather my account in as a new account with the $100 offer. Sure enough so! they said, and twenty minutes later I walked out with some extra money coming to my account.
Similarly, I returned a Marlok key to Northwestern's EECS department in order to collect the deposit I made on the key in 2004 or 2005. They don't even use Marloks to that lab anymore, but after receiving a form with my four-years-old handwriting from one office and turning it in at another, I should be getting a $25 check in the mail very soon.
I hope my afternoon is so productive.