Your first week on your new house is one of the most difficult times in moving. Its not as if you just have to unpack things and everything will be back to normal. As a matter of fact, adjustment takes a week or so for things to go back to normal and easy.
Packing your things accordingly pays off. Color coding is the best way to deal with things. You can easily unpack things if you know the corresponding color of the box that its in.
Also, you can make a list of the contents of the boxes. This list will be very helpful if you have a lot of things in this box or that box. It will help you in getting the things that you want in the quickest time possible.