My earliest deadline is April 30 (yes, really. I know that's late), but UMB says that if I get my materials in by April 15, I can be considered for a graduate assistantship, which I'm certain would be a good thing, so my goal is to be done by then. Hm, April 15. Isn't that an important date for some other big paperwork thingy, too?
I've been kind of in a holding pattern thinking about all this, but as I said to