PACKING AAAUUUGGH!

I've been piece mealing the packing since we figured out we bought the house, which was around early February. However, EVERY time I pack, I keep finding things I forgot to pack. The more i put in boxes, the more stuff is left. I move the heavy furniture this weekend. My stuff should be packed up and ready to go by then. I fear that no matter how much I put into it, I'm simply not going to be ready to move this Saturday.