I don't really need to, they just come in handy! Pepper spray for self defense, tic tacs for minty freshness, secret things are for fun , tampons and pamprin I hope I don't have to explain, flash drive so I can take my work home, iPod/radio transmitter so I can have my music in the car (I can't leave it in there when it's 115 degrees), and a comb because I have no AC and I have to drive with the windows down (also my town is like the 7th windiest city in the nation or something).