I too would be very interested to hear these, i never know how to describe it to people when they ask me what im going to do at university, i usually just say its like product design and they kind of get it :S
It seems when I am explaining what I do, I usually point to all the things nearby that a designer has touched - usually 100% of what’s nearby - and then explain how we would work with companies on both the creation and improvement of them
Them - What do you do?
Me - I am an Industrial Designer.
Them - What’s that?
Me - I design new products.
Them - Like an engineer?
Me - No. An engineer primarily works on the mechanism. I primarily work on the person to product interaction.
Them - Huh?
Me - An engineer makes your clock blink 12:00. I make it so you can set the time.
Them - You failed miserably with VCRs.
Me - Correct.