if you or your other inhabitants are the type who in the last day or so will bung random shit all in the same box, for the love of god label it! my husband did some very odd combinations the first time we moved together and it was a nightmare not knowing which box had some of the last minute obviously used all the time stuff in. e.g. i'd half fill a box with non-crucial stuff, label it as that, stop as it was getting heavy and needed something light in the top half, and then he would bung important stuff on top, not update label and seal it. gah! last time we moved it was much more controlled.
write labels on the top and on at least two sides. when stacking boxes on unload try and make sure a label is facing out. nothing worse than not knowing which of the four boxes on the bottom layer has the thing it that you want.
pack most of your kitchen stuff well in advance as that's often the slowest bit. leave a selection left til last, e.g. four plates, four bowls, four mugs etc. makes a bit more washing up for a short while but means you're not wrapping all the breakables in a panic on the morning of move.
But this house is nicer, and cheaper, so it worked out for the best. 
