What EU should do

I would highly appreciate if EU invested their money into some useful database systems, like a central register - one would have only one personal number (I am in possession of 3 right now) valid for the whole EU and all his job experience would be put in there. So, if one moves to another country, one wouldn't have to bring lots of documents with...the clerk would just have a look at the system and knew. Or a "wedding register" in order to prevent a long annoying paper work. I would love if English would be sufficient for all of the documents. Translating to Estonian's gonna cost me arm and leg. Moreover, if we move, we'll have to have it translated into another language...Argh, this moving between countries, marrying an Estonian citizen, the unemployed future,...it's so annoying. But can't wait to leave my au-pair job on Saturday :)