By Booth Moore, Fashion Critic There was a luxe trashiness to many of the collections for fall that's curious when everyone is in survival mode. Now we just have to wait and see if anyone's going to buy. Here, a rundown of the season's top trends: Most likely to already be hanging in your closet: A black leather jacket. If not, they were everywhere, the best with a subtle, studded collar at Yves Saint Laurent. Click here for more ways to wear spikes and studs.