Starting a application portfolio

I am currently undertaking a business degree at university but plan to apply for product/industrial design schools for 2014. I studied art in high school (2 years ago) but I mostly did painting and sketches so maybe some of these could be included, I also draw using pencil a lot in my spare time and do graphic design.

What do you think I need to include in my application portfolio to add variety and show my skills? Do you have any examples? Thanks for the help.

Lots of threads and examples around here on the boards.
Also check with the school/current students if they have any requirements or tips that are specific to the school you are applying to.

Generally speaking, I’d say it is more about you putting in a lot of thought and effort than about drawing perfect ellipses. Being a good storyteller, in this case your story, will be important.