Last time I moved (I shudder at the thought) I packed boxes and marked them with a location and a number. Like Kitchen 1, Bathroom 1, etc - the number meaning - #1, gets opened first, important things inside. # 2, #3, not so important to open right away, can wait until later. Saves a lot of time looking through every box marked kitchen when you just want one pan or utensil.
Last time we moved it was getting a 9 room house into a 4 room house. My advice - have a yard sale BEFORE you move!! no, we didn't!