I thought of posting my first with something esoteric - dealing with crack and using child carseats.
The second one is still alien to me and the first one...well lets not get into that so early in the day!
O.K., without anymore unnecessary prologue, lets hear about these two things from an ingenious economist of our time. Just follow the links below and have great fun!
On Crack: http://www.ted.com/index.php/talks/steven_levitt_analyzes_crack_economics.html
On Child Carseats:http://www.ted.com/index.php/talks/steven_levitt_on_child_carseats.html