I just ordered some brushes just now but didn’t see an option to apply my “smart points”?

You will not be able to use the smart points that you earnt on that order against the same order. You will be able to use them on future transactions though, but just make sure you sign in so the website knows it’s you & your account. When you come to the check out, you will see you can “Apply Smart Points”. Enter the amount of Smart Points you’d like to apply, and you can go from there.