Every last Friday of the month there are sample sales in showcase rooms in LA. Look for signs that say sample on the window before you walk in. If there are no signs at all, ask if there is a sample sale.
Bring your own bags
Be there around 845am
Get dropped off if you can, otherwise park across the street for $10-$15 dollars. Go with some friends so you can split the parking charge
Bargain when you’re there especially from 2-4pm when they are about to close up and want to get rid of their items.