If there's one secret to a good self-care routine , it's knowing to treat yourself every once in a while. Go on a solo date to a fancy restaurant (dessert included!) or buy that mini bag you've been debating. But given that November 11 is Singles' Day , a.k.a. the one day a year dedicated solely to singles treating themselves, it's time for an extra-special splurge, perhaps on something that might not be the most natural thing to buy for yourself. Case in point: non-engagement rings