When I am feeling in need of a bit of a me day, fruit water is my answer. Ideally I make it up the night before, and then leave it steeping overnight and then start drinking in the morning.
This batch of fruit water was cucumber, lemon and celery, but I do vary it. My favourite fruit is pineapple, so sometimes I make that the hero. A bunch of mint is another great addition. All citrus is good too. In summer I might add some ice cubes, but I think a cleansing drink is better at room temperature.
Throughout the day, I add water and aim to drink at least 2 litres in total.
Plan a day when you are staying at home as you will be running …. And in my case that adds in exercise as my bathrooms are a flight of stairs away from my living room. It may be my imagination, but I think my skin glows and I have more energy the next day.