When it comes to school what would you say are the "must haves" that you couldn't live without?

for example:computer, specific software, Palm Pilot, study aides...etc.

For me...
I just bought a Mac and I love it so far but I have to have my palm pilot(Treo) or I wouldn't know which end is up. I also downloaded a trial version of Iflash for the Mac to make flash cards to study with and that is pretty cool too.

I don't start my program until August but I am curious what you all are using or doing to survive school.

Thanks in advance for your comments!!