I have moved around a lot, so I actually had some of my most prized possessions in my office to keep them safe and accessible (I worked there for 13.5 years). BUT, I had a ton of space and locking desks and cabinets.
Now? I took my 'desk swag' like software pins and coffee mugs etc and put them in a bag which I brought directly into my new place where I work in a cube. I've added strategically to it, in a bid to set myself apart from my coworkers.
I've got a picture of each of my kids and my BFF, but, no framed wedding photos like most of my coworkers. I hate stuff on my desk, so everything is pinned to the walls or up on a shelf.
I've also got fangirl stuff (lotr, starwars, family guy, harry potter), technical reference posters, technical press pass, lego and rubix cube, 3d printed parts, a couple of random cables, and an ada lovelace poster.
Working amid primarily young women, I'm trying to make my desk look at "IT" as possible (at least at my old company, the IT folks always had toys (especially lego and rubix cubes) in their workspaces, so, when folks come by asking questions about the coworkers or the work we do, they pass by my desk and find someone who looks more like they fit in.
It mostly works.