I sometimes work late and come home after my girlfriend falls asleep. When I got in the apartment tonight, the furniture was rearranged and her exercise equipment is front and center in the living room. The part that I enjoy is to try and piece together everything she's done during the evening. Tonight, it looks as though she was stretching her back and legs while watching exercise videos on the Playstation 4. The Playstation especially stands out because it is hardly ever used - she usually watches videos on Youtube instead.
My laptop was on the sofa with a bag of Skittles left on the side - she must have been surfing the web and snacking at the same time. Another explanation is that they were left on the sofa from the night before. Since we share the same laptop, sometimes I can inadvertently see what she's been doing. The UI for Squarespace shows which website was accessed last. Since we share the same account I can tell when she's been updating her blog.
I think it's fascinating to be able to piece together a story with traces of evidence. It's like reading a newspaper from its leftover ash. You try too hard and it'll be gone in a second. If you don't look hard enough, it'll pass you by before time moves on.