There was a time when the retail clothing industry was thriving. "In the '80s, my customers spent almost 8 percent of their disposable income on clothing," said David Sacks, owner of Sacks SFO apparel stores. However, time and a change in consumer habits have eroded this reality. Over the last decade, Sacks, 53, has had to close several of his outlets. He watched his retail miniempire dwindle from 20 stores nationwide to two local outlets: one in Studio City (12021 Ventura Blvd.) and a new location in Culver City (9608 Venice Blvd.).