Germany, T Minus - Not enough days

Why do trips always pop up sooo much faster than they seem? I still have 2 papers to finish writing before i go on this thing. Not to mention getting an oil change, currency exchange, doing laundry, packing, figuring out all my ground logistics so that when i arrive i can know how the hell i'm getting from the airport to the hotel to the conference, etc. Then back to the airport early as hell in the morning so i can get to england. All in all, i'm pretty stressed right now. Bummer.