I find Harbin very well equipped. You don't go without much when you have the likes of Walmart and Carrefore around.
I would suggest for your wife, bring a stock pile of underware, (depending on her size). The Chinese girls are small (all over) and the underware is made to fit them. So if you're more of a fuller figure it will be hard to buy what you need.
Shoes really aren't much of a problem. Just like at home, different brands have different sizings.... At home in Aust, I'm a 9. Here I own everything from 39's to 44's. (Be prepared for sparkles... Apparently the more it sparkles the better in China)
Tailors can make just about anything for you too. So if you can't buy what you want, head to the tailor. Cheap, quick and it will fit properly.
Make up - remnanats of the 80's. Lots of bright colours, glitter and foudations with white bases. Fine if you have pale skin. If not, and you're a make up person, bring a supply.