Ikea is good for decent basic furniture and kitchenware, reasonably priced. Its also quite fun to circulate around and browse, and the cafe is decent too.

We've found the way to avoid spending more than we should there is to go there looking for something in particular, discover they don't have it, and leave quickly in disgust. (Dish for party dips? No. Safety glass film in the home safety range? No. Picture frame I actually like? No.)

Browse without a clear goal in mind and it's easy to spend a fortune. ;)