Vectors in a proper vector program (ie not the ones in Photoshop or PSP) are SO much fun <3 You draw a line with the pencil, same as you would in any drawing program, but instead of it looking like shit, it makes it all smooth and curvy and puts these little points and handles over the line, so you can change it and make it even MORE smooth and curvy.

...I've just made it sound even more complicated. It's not, really XD I want Freehand, yes I do *nodnod*