Ask HN: How do you balance having a personal and a work computer?

If you use your work computer as your personal computer as-well, which measures do you take into account to have a healthy separations of the two environments, if any?

And if you use two machines, one for work and one for personal use, which components (applications, config files, browser accounts, password managers etc) do you share between the two?

For security reasons, I guess most companies would ask you to not use your work machine for personal stuff. I'm afraid the reality is far less idealistic. Does your company have a policy on this at all? I wonder what the norm is.