Slovenia is using € for 21 days now. The prices have gone up a bit (some even for 100,% 200 % :(( ) , my wallet is full of coins and I still don't have a right sence of the value of the currency. I'm sure with time I'll get the feeling. For example before you had to pay for a car couple of millions, but now "only" couple of tens of thousends, so it's a bit different.
The "secret" project I blogged about couple of weeks ago is comming to an end and more will be revealed by the end of the month. Stay tuned ! :))