If I have no Internet, phone and tv for the entire day...
And if I am allowed to do whatever I want,
I'll sleep the entire day, read my mangas, practice my piano and Guzheng or play with my violin, do some drawing, go out for a walk, visit my friend for dinner, shopping, try my hand on a new hairstyle, or try to knit, try out a new recipe, bake cookies, buy junk food and eat them, watch movies, go to the pet shop, stare at the skies and clouds, sit on a bench at the park, lie on my bed thinking, read my science and math books, go to a library and borrow stuff like learning Japanese or learning C++ or learning psychology etc, have a drink in a cafe, do up some handicraft, mess up the house, clean up my house, tidy my table, or just head off to some cafe with wifi installed and use their wireless.