Tried that, got the "I need my shoes but you don't need another case of whisky" from a woman who had an entire closet just for shoes. I swear, it's enough to drive you to drink.
Just start selling her shoes for whiskey money and fill up her shoe closet with whiskey. Then, while drinking some whiskey walk over to the store and buy more whiskey. If she complains, tell her to take off her shoes, then pour whiskey into them.