If only I had ...

(today's episode) ... known twitter 6 years ago.

At that time I was working for a mobile operator in Austria, and my department (SW development) was separated from the rest of the company (that included being separated from the IT operations group) into a building 5-10 minutes away - by car!

We had to commute with taxi about 2-3 times a day from our office to the main campus and back again.
More often then not two or more people would not know about each other taking the same trip and therefore take 2-3 cars at the very same time for the very same trip ... instead of just one.

So I came up with the idea for a little SMS application, where I'd advertise my planned from from our building to the main office by sending a text message to this service.
Everyone in my group who - here location comes in - is currently in the off-site building would get this notification and could reply with e.g. "join" or some other keyword, and I'd then get the summary who would like to join me.

We never created this application, although it would have been quite simple and fast to develop.

Should've built it.

Today, I'd probably do this with twitter.