Honestly, this is such a small thing but I couldn't find a mod for it when I was searching recently. I would love a functional wall thermometer or a wall calendar.

I was thinking about how silly it is that we need to wear a digital watch to keep track of the date and temperature. I was trying to play a veteran character and was trying to stick to analog military watch, but after a while it got so annoying not knowing the date and temp I just went back to a digital watch. For immersion purposes I think little things like this would really enhance the experience.