Dollar stores are coming out ahead as Wal-Mart stumbles.
Wal-Mart is suffering from slow sales and too much inventory, they're cutting back on orders for the rest of the year, and they've downgraded their revenue predictions. But as the economic recovery continues to be slow, dollar stores appear to be picking up the slack.
Dollar Tree, Dollar General and Family Dollar are taking advantage of a change in shopping habits where people are typically buying seven or fewer items at a time.
The lower-volume retailers are also improving their offerings and are adding more big brand names to their shelves.  
- Rob Archer