Bright-colored stuff that doesn't blend into the tasteful room decor - washcloth, tape around chargers, small pillow's case, pocketsized journal, favorite pen, name your important items.
I use a small pillow for my back on flights & drives, & learned the hard way to attach it to my body (left it on a plane, couldn't retrieve, waaah). Made an outer drawstring case with a long loop of ribbon, which then goes loosely around one shoulder. When I get up, so does it.
Instead of a neck wallet passport case thingy, a slightly larger fabric bag - thrift stores are a great source - that also holds what's usually in my pockets: chapstick, kleenex, eyedrops, pills in aforementioned bitsy plastic bag, credit card & some cash, journal, phone/camera. If we're ever on planes again, hugely easier to get at than wrassling around under jacket & seatbelt. Good for road trips, too, for hopping out without the whole purse/totebag. They also generally have wider & softer straps, comfier than those braided cord ones.
For cold planes & rooms, a big silk scarf as blankie. Squishes into nothing, feels luxurious & comforting, & spiffs up my, um, utilitarian wardrobe.
Ah, to pack again!