Ok, you shouldnt be watering them every day more than likely. And your right about watering them till you see it start to drop from the drain holes. Pick up your pot before you water should feel pretty light now pick it up after you water feel the difference and you shouldnt water again until feels light or "empty" again. Another way is to stick your finger down some say once the top inch is dry to water, I like to wait till the top two or 3 inches is completely dry. I also made the mistake of watering every day at first until somone told me otherwise. The only reason you should be watering every day is if the plant is drinking that much and drying the soil out everyday. If the plant is doing that then more likely then not it needs a bigger pot.