in super makets and shopping malls. Bargining is not neessary there. In Hubin South Road of Xiamen, this is a electronic street where you can find many digital malls. Try to bargin a little, for the price is not requested much higher than normal price. You can see many shops and choose the cheaper one.

For Shoes, you can find it in the city called Jin Jiang. Its near from xiamen, just take 1,5 hours to get there. U can find all kind of shoes in there.