in london, I find primark amazing to buy basics.... turtlenecks, tights and such "understated items".. and then combine in with more expensive pieces such as nicer shoes and bag.. whenever i wore primark, none of my friends would believe me..however the more shiny stuff, "gold" and sequins and such looks cheap.. and everyone else in the city has it..
in america, forever 21 is a most.... yet, the quality is really bad, that after a few washes everything gets a hole.
they have cute accesories though.. very fast fashion and cheapp---combined well it can make an outfit beautiful