Lrn2iTunes.
Always always always turn syncing off. If have have it set to manual, you can add and delete songs all you want, you can even add them twice. Syncing if for retards who can't create a "to add to iPod" playlist so they can remember which songs to add next time they plug in their iPod. It is also for people who breath heavily through their mouth and drool a little when trying to think.
I hate iTunes, and in general I'm not the most impressed with my iPod. I got it 5 or so years ago, and I've been through 3. Luckily, I've been able to take advantage of various Best Buy replacement plans and having little "accidents" with my old iPod to get a new one every couple of years. It's the gift that keeps on giving, even if it's a semi crappy gift. When this one finally dies I'm getting a different MP3 player (one where you can change the batteries by yourself rather than paying apple $100 to do it for you).
In general I've been saying "iPod" over "MP3 player" because at college everyone has a fucking Macbook, a faggoty iPhone, and a fudgepacking iPod. Everyone. I mean I should figure pretentious school=pretentious people=buy pretentious things. But when I'm not here I usually say "MP3 player" unless I know the person has an iPod.
Also, it's Kleenex. Tissues are for queers.