Good everyday mini treats?

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Anyone have any good food that I can mini-treat myself with everyday so I don't lose the will to live? Lol.. like dark choc or something? Some dark chocs are very good but I've seen some that are horrifically bad on everything from calories to to carbs.. any good types of foods and brand names would be good.. need some mini-treats through the day to keep me going! Thanks :) (P.S. anythin that's low in carbs and high in mono/poly fats is most advantageous for my 'diet')

Thanks so much :)