Carry as many books as you can. A french-chinese dictionary cost me 28$!!! here.
Better carry softwares and cds in a hardisk or in a laptop,otherwise you risk being fined.
Some kitchen wares, the "Gaoyaguo" is a must.
Curtains are also useful when some house owner don't offer curtains ,and when you need to divide the space. I have to put up 6 curtains in my house!