High quality casters for your office chair - they all come with generic, cheap plastic casters no matter how nice the actual chair. You can pick up, top quality rubber casters for $20 off amazon [1]. Makes rolling around 10X better.
And this is before I'm able to get a (carpet-covering) chair floor mat for one of the custom floor mat, preferably not PVC or glass, but made from one of the harder plastics. I have 2 105x30" Uplift tables in an overlapping L configuration (due to the small size of the room) that needs a rolling surface. I've seen price quotes ranging from $300-1000 USD for custom mats. Bonus points for a mat and wheel material combination that doesn't create terrible static (ESD) problems.
Unaffiliated: https://www.amazon.com/dp/B088D8XHHQ
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EDIT: My very bad @serjester, it seems a.co is indeed just shorted but can't contain affiliate tags. That's always amzn.to.
TIL!