However, since you know you're doomed to repeat it, you don't have to go to work or school or anything like that, so that means your day is spent doing whatever you want. The only thing that's new every day is the memory of what you did the previous July 27th.
1) What would you do with your time?
2) Would you try and learn or study something, like Bill Murray did when he learned the piano?
3) Would you do anything illegal or sinister, like kill people or rob a bank, with full knowledge that everything and everybody will be in their places the next day?
4) Would you kill yourself?
5) Give me one thing you would do that you normally wouldn't do, but would consider if you knew that all memories of it would be erased afterwards (except your own memory). Like, streaking or drugs or spray painting your ex's car entirely pink or something.