Generate a full detail guide on how to water a garden effectively. The guide must be a foundational skill tutorial. It should include detailed sections on: 1. The principle of 'Deep Watering' vs. shallow, frequent watering. 2. A guide on the best time of day to water to reduce evaporation. 3. How to check if your soil actually needs water instead of watering on a rigid schedule. 4. A comparison of different watering methods (e.g., soaker hoses, sprinklers, hand watering). 5. A list of common watering mistakes that harm plants. Please include a supportive disclaimer.