Use a water bottle. Have it with you and bring it with you everywhere you go! This will remind you throughout the day to drink, and it will also help you keep track of how much water you have had.
Drink electrolytes while you workout (branch chain amino acids).
Add in some coconut water either mixed in with your regular water, or just plain coconut water.
Jazz up your plain water by adding in fresh fruit, spices, or veggies! My favorite is cucumber, lemon, and mint!
Check your urine! If it is dark, you are already dehydrated!
Set an alarm on your phone or watch as a constant reminder to drink!
Drink 16oz of water 2 hours before exercise and 4-8oz every 15-20 minutes during exercise.
Aim for 80-120 oz. of water per day!