I think it would be really cool if there was a way we could go and watch cutscenes/heart events we've already seen again like an archive of scenes you've collected. I find myself coming back to my save file a lot after big breaks and forgetting everything I learnt about all the characters and id love to be able to go back and rewatch those cutscenes to refresh my memory. This could be in the form of an item or furniture item you interact with that shows you all the cutscenes you've unlocked and even show how many you have left to see