I often run into this problem often of going to sleep and finding out the next day that i forgot to do something yesterday, but it's already too late. Could someone possibly create a simple add-on-mod-thing that auto-backs up your save file for the previous day after you go to bed. I guess it could work like creating a new save file for that new day, then moving that previous day save file in a backup folder.
I'm for this as well. I just remembered that I forgot to go to Leah's art show. She's going to hate me.
I want this just because I'm terrified of losing my save. I appreciate the Dark Souls approach to game design where your actions have permanence but if I lose my save I want to get it back.