Last year on Black Friday I stocked up on razors! Ulta sells normal drugstore razors online (Gilette, Schick, etc.). Might not be the best prices, but I feel like I earn it back in points. They also have other random stuff--whitening strips, vanity mirrors, sleeping eye masks, etc. In general I've tried to make sure I always get my basics there--shampoo/conditioner, razors, cotton rounds, nail top coat, stuff like that.
Also, for what it's worth, when you spend using points, it still counts toward your platinum status. I earned $150 toward my platinum status this year for FREE by using 2000 points when I had a 20% off coupon.
But then again, if you really don't need stuff, don't spend the money! I can't remember how long it takes points to expire after you lose platinum status, but I feel like it is a good chunk of time?