[psxuaw]

I just add " ###" to the end of commands run frequently. It makes easier to identify important commands with atuin, fzf or plain bash/fish history search.

[__MatrixMan__]

I prefix them with comments

    # sometag
    the --actual --command 

"Bashtags" I call them, despite not actually being in bash these days.

[andrelaszlo]

Same, but as a suffix