We looked up "original sin" at Wikipedia so as to get a better idea of what I wanted to talk about here, but man. That stuff is complicated. See, we don't learn about it in the LDS Church, because we don't believe in it, so I wanted to know more about it in order to discuss it more properly, but I have a really hard time wrapping my mind around the whole idea.
Basically, it boils down to this: we don't think that babies need to be baptized, because they haven't had a chance to develop the knowledge of right and wrong, so they're all saved through the Atonement (more on that one in a later discussion), and aren't doomed for eternal damnation just because they died before somebody sprinkled water on them (we believe in baptism by immersion, but that's for yet another discussion).
In other words, we all have the ability to choose our actions (no one can make you do anything, period (though of course, what you're tempted to do is another matter entirely)), and any terrible consequences you receive at Judgment Day are going to be your own fault.
I think that covers it. It's not too long.
Today I'm thankful for making more progress in the apartment organization, getting to watch Aladdin last night, moral agency, making friends with Mom on Legend Cards, and the hope of getting to go to the Ghirardelli shop at California Adventure.