my frozen homemade ice-lemon tea

i've been feeling thirsty these days, but i have to watch what i drink. i only take plain water at work, but i'm not so disciplined at home. i can't buy all the bottled drinks from the stores due to the sugar content. i decided to make my own ice-lemon tea with only one spoon of sugar in one big mug. and with one slice of lemon, the tea really tastes nice and it helps to quench my thirst :D