I've been having an issue on i3wm that's been bugging me: the screen blanking doesn't get disabled with software like caffeine or stimulator. Both used to work but suddenly stopped, and I have no idea why.

Fortunately, there's xset to manage the screen blanking and screensaver from the terminal.

I wrote a function for my shell (zsh) to make it more interactive and easier to use. On a window manager, I can attribute keybindings to specific options to toggle the screen blanking and the screensaver or query their statuses, then get a notification about the change or the query.