A BSc(Hons) in Chemistry - worked in a lab for 1 year before travelling on an OS and never using that qualification again directly.
10 years later did Grad Dip in Software Engineering (just as the IT bubble burst early 2000's - so never used that directly either :) )
Done a little bit of systems support in one role, but now have ended up as a Retail Business Analyst.
Overall can't say I've used the bits of paper for much other than using the scientific process to problem solving and making my CV look better...