I've moved so many times I think I've got it down! Once I tried to label every single item in each box- it got to be too overwhelming. Here's my suggestion-
I put the name of the room that the box needs to be in- and a number on it. Anything with a 1 I know I need to unpack asap. 2 - things I can live without for a while but not forever 3- if it stays in a box for a month, I won't miss it. That way- I know what I need to unpack first- and by writing what room it's on- all my kitchen stuff is in the kitchen and so on.
With your time frame I'd definitely start going through my stuff and boxing up my 3's now.
Hubby suggests that you don't forget to stretch on moving day and know where the Aleve is for that night!
Also- if you have to clean the place you're moving from and want your deposit back- I strongly suggest you have a day for doing that, maybe two. And some friends to help!
To me that is the hardest part of moving, the cleaning up.
oh! And a walk through of the new place before the movers get there. I like to go through and take not of any damage at the new place to have the landlord keep a copy on file, don't want to be blamed for anything I didn't do when I move out. Also, once, I had a very horrible move in because the place wasn't cleaned. At all. so- it's good to know what you're getting in to.