A few years ago I found my perfect work shirt. In C&A no less, so at 20 euro, pretty cheap as well. Good fit, nice cut, slightly stretchy material, half-length sleeves and just a few sewn on buttons for decoration on the top half - it looked like a shirt but was really a pull over the top of your head top. I wore the first one for a few weeks and then went back and bought one in every colour. And the next year, when they had different colours, I got some of those, too. And then they stopped making it. I'm still bummed about that because one after the other, my shirts have been worn out. I've even dyed a few of them a couple of times to try to extend the life a bit but I'm down to my last three now, two of them looking kind of worn and the other one, annoyingly, I caught on a nail and now has a hole in it. That Ulla Popken one looks pretty good though - I might try and find a shop to stop in and try one on sometime. My new job isn't as formal as the old one but I'd like to keep one or two more formal outfits in rotation for a while yet.