I made lists, many many lists. Each list had a room name of what I needed/wanted (kitchen, living room, bathroom, so on) Then, as I packed, I checked off each thing on my list, and knew what I needed to purchase after that. I rented a small $25 storage unit, and everything I didn't immediately need went straight to there so it was packed, out of the way, and in an easy location for loading. My sisters were actually a little upset with me for how organized I was because as they came back to help me unpack my kitchen, bedroom, and bathroom (the three rooms you need to actually live, lol) they quickly figured out there wasn't a house warming gift left to get me!
Also, just curious, where in Kansas will you be moving? I am really close to the Missouri/Kansas border.