I'm a big Uniqlo fan, but only buy stretchy stuff in there, like heat tech tops and the odd jumper for that very reason - I need stuff that allows for boobs, and goes in at the waist. I did get a fantastic coat there though this year, which is super-fitted.
I am a huge fan on Uniqlo, its a fab place to buy basics that wash well and last with out too much shrinkage and their jeans are amazing especially the skinny tapered fit jeans. Its one of the few shops where I can buy something in my size without worrying if its going to fit properly or not. Oh and it's a great shop for simple well made coats / blazers / jackets.