Sticky Notes.
It was what you and Finn had always been using to tell each other something last minute. For example, if Finn would have had a reunion about the movie he was writing at the moment, a last-minute training session for Calpurnia, a studio day for his own album "Happy Birthday", or even just an event, an interview or a photoshoot, he'd scribble it down on a sticky te and stick it somewhere in the house he was sure you'd end up seeing taking in fact when he was going.
In the morning, he'd stick it to the fridge. If he would be called in the middle of the night, he'd stick it to the bedroom door for you when you'll wake up the next morning. If he'd go in the afternoon or the early evening, he'd go stick it to the coffee table of the living room. Or if he'd go in the late evening, he'd stick it to the bathroom mirror. Every part of tge day he could get called out for anything had it's own sticky note spot. And it was how it worked.
This morning, when your eyes opened, thanks to the sunlight creeping in through the window, you stretched and groaned out as you squirmed around for a little while, until your hand reached out to go and poke at Finn's face like every mornings, but your hand ends up flat on the matress. Finn was gone.
So, in an oversized t-shirt of Finn's band, your panties and only one sock on on your right foot, you kicked the blanket off and walked downstairs, hair tousled and messy as you called out for him confusedly, rubbing your eyes before tucking your glasses on. "Finn?"
Walking down and ending up in the living room when you reached the bottom of the stairs, you noticed that Finn's slippers were by the door, meaning he was gone since his slippers were in the spot of his shoes, so you walked toward the kitchen, and was met with a sticky note on the fridge. "Morning baby! Been to a photoshoot, I'll be back before lunch. Love you." Was written on the sticky note, with a heart and a tiny smiley onto it.