Items I purchased for presale:
Items still in stock
In my experience throughout the years- B.P, Madewell, and Topshop usually restock top items through the fall . Even some of the things that sold out for presale have been restocked for other tiers of the sale. So I would grab items that are other brands that you want to invest in. I usually stock up on booties or boots for fall and jackets for the girls and I.
I hope this helps while deciding how to take advantage of the sale.