If you live in Sofia, you probably already know that e've got a Carrefour in The Mall.

The thing is I do all of my weekly shopping at Billa. It's close and easy. They've got a good selection of basics. These days you can also find hummus, tofu and arugula there too but they don't have everything.
<a href="http://www.flickr.com/photos/29050866@N06/6896807769/" title="In 10: Carrefour by karolinka.sofia, on Flickr"><img src="http://farm8.staticflickr.com/7038/6896807769_759248576f_z.jpg" width="640" height="427" alt="In 10: Carrefour"></a>
So I use Carrefour to supplement my standard shopping list.

Oh and I love the Carrefour store brand.