The same man comes in day after day to surf ebay. And, every day he asks how he can save the picture of the item to a disk and upload it in an email.
Can he remember how to copy and paste into MS Word? No.
Does he remember how to switch between windows? No.
Does he know how to save the image to the a: drive? No.
How about browsing for the attachment? Of course not.
That's what the liberrians are there to do!