Oh! And since you made it impossible to avoid buying new clothes when outgrowing them, it might be cool to add a wardrobe every morning and to make it impossible to save on SMALLER clothing when trimming back down too! Not to mention that your flatmate/partner could borrow your clothes, especially if they're of the same sex, and it would make for an either annoying or fun joint shopping sequence!
And maybe include some pregnancy that checks the day for multiples of... Thirty or so, with a range for random variation when an NPC can get preggo, or more sex options like blowjob or backshots, especially when you implement dudes
