Sudo is fine for single user workstations, but that's an excellent point about logging into the wrong machine.<p>Since most machines are single user, what's about a variant of passwordless sudo, where you type the name of the machine you're on instead of a password?<p>When is multi user actually used these days? I don't do a lot of cloud work, so I only ever see it in the form of different systems users, and some of that could be replaced with stronger per binary permissions like AppArmor.<p>I'd imagine on database servers or something with different levels of access, but I'm guessing most of those accounts wouldn't have sudo.