Yes, there's not really a lot of "stuff" of any value, and I would put anything like that into an informal document, as my mom did. I can't imagine my kids fighting over the handful of paintings (none valuable, most amateur), I don't have any jewelry of value, really my car would be the only thing. And I'm pretty sure my kids would be able to agree to give that to the kid in most need of a car at the time.
The one thing my mom did which was super helpful was that she put me on her bank accounts. That enabled me to immediately access that money to pay for funeral expenses and I was able to divide the rest of it up amongst my siblings as soon as I knew what was left after paying off her few bills. I know it's not a good option in many families where there might be a temptation to take that money or suspicion about it but I was ever so grateful in this case and all my siblings knew they could trust me to be completely honest. Retirement accounts had us listed as beneficiaries but that still takes some time to do all the paperwork to get them distributed. None of my kids would have the money to pay for a funeral or even to keep up the mortgage payments at present so having one of them with access to the accounts could be a good thing. For now though I think you can list them as beneficiaries of bank accounts if you die, that would probably still be slower though.I might put one son on one account so someone has access to some emergency money.