How about link shortening service? If agreed to omit "", then it consists of 7 digits (2YWc9xm) for the entrance door to my office in Finland (, thus replacing; the nearby another 3 x 3 meters Square is also 7 digits: 31Gg3au (, thus replacing

But I like my office addresses to be more humanly-sounding, inviting guests to my place: by "martini upstairs" or "engaging applause" 🙂

For technical guys this discussion is much more interesting, than for average people (like me), enjoying usability of what3words.