How do you organise your folders?

So many people upload amazing graphical content and after having a 2 day organisation of my files and hard-drives I was interested to find out how organised people are (or aren't).

I had an awful habit of saving work projects to desktop for quick access which then would go into folders to be sorted (lazily)& repeat.

Do you split by date, program, content I would love to see some of the OCD freaks in here!

And some of the downloads > to sort > to sort 2 > this_has_gotten_out_of_hand.zip