I have pretty much the opposite anecdote: to me the Chrome URL bar is a magic component that finds any of the tickets I've lately worked on (from three different ticketing systems) with typing a few words/characters, knows that "n" is HN etc, "g" takes me to gmail.com etc. And all without any effort to manually teach it.

Google Spreadsheets is where it often fails to work perfectly - hard to get it to take me to the spreadsheets homepage if I don't remember exactly which sheet I want to open.