Your body hydrates much better when you're drinking small amounts of water frequently, rather than chugging a liter of water all at once. Getting a water bottle is a great way to remind yourself to take sips throughout the day. You don't have to lug around a 4-gallon bottle every day, use whatever size is comfortable for you to help you better build the habit of drinking plenty of water every day.
There are many free water reminder apps on the app store. Download one and set your body weight and height. It will automatically calculate how much water your body needs in a day and remind you to drink water. This way, you can drink water in intervals rather than gulping down half a bottle in one go. You can even track your water intake and stay hydrated.
Fruits and vegetables contain 80-90% water. They are the best alternative to frozen food. Fruits and vegetables with the highest water content include:
berries
melons
oranges
grapes
carrots
lettuce
cabbage
spinach
It is not necessary to eat only fresh fruits, frozen fruits are just as nutritious and hydrate your body. You can also make a smoothie with fruits and Greek yogurt and hydrate your body.