Packing nightmares

I have spent around 5 hours a day packing for 6 days now. I would not recommend it to anybody, especially with little kids. Charlotte and Simon are loving unpacking the boxes after they are packed and destroying the downstairs while I am upstairs. They are both exhausted whenever I ask them to clean up. Yesterday I was upstairs packing and Charlotte and Simon were playing on the deck. I looked out the window and saw Simon putting about 6 inches of the blade of a box cutter into his mouth. Miraculously he did not cut his mouth. I then brought them up to have a bath. I went into my room for a minute and came back to them using the tub as a slide so my entire bathroom was drenched, I suggested they could finish their bath on the floor since it had more water than the tub. I put more water into the tub and again went into my room. I came back to find them both standing up and peeing into the tub. I filled up a tub a third time because I still hadn't washed their hair. I let them know that most likely the water would be cold to which they started crying about. After their bath I went to get Charlotte her pj's and came back to find they wanted to empty out all of the toys from the toy chest. All I could say was "Are you kidding me?"