If you already know where your towel is, then you're a cool frood and we can totally sass a Pan Galactic Gargleblaster sometime, dude, hey, let me know when you wanna hitch a ride with some Dentrassi, those guys don't give a wet slap about anything but food and drinks and having a good time.
If you do not know where your towel is, well...then...
you'll need a primer before you read the trilogy. Oh, the trilogy has four parts. That didn't used to make any sense, but now that literally fucking nothing does, just go with it.
"It is a well-known fact that those people who must want to rule people are, ipso facto, those least suited to do it... anyone who is capable of getting themselves made President should on no account be allowed to do the job." ~Douglas Adams
See also: OK, You Can Panic Now