Discount dollar stores are edging up in the retail market.
Dollar-store sales in the United States grew from $30.4 billion in 2010 to $45.3 billion in 2015.
Dollar General, Dollar Tree, and Family Dollar stores have all announced plans to open hundreds of new stores this year.
While not a traditional dollar store, "Five Below" has entered the market and announced its own growth plans.
The store where all items are priced $5 or less has seen sales increase at its 625 stores by 2.7% this year.
The discount chain has opened 67 new stores so far in 2018, with plans to open another 50 this quarter.