>I must admit that I never has spend some money on a book or something the like. Could'nt learn on reading a book.
>And my boss never purchased a comercial framework. No we've our own (It's not my money and it was a lot of fun creating it. Programming on the framework is more exciting than form design).

I've used a couple of commercial frameworks on my previous jobs, but on the last three there's a home-grown one... and I've had my own back in the nineties, and have some sort of almost usable framework even now. I get back to it when I got absolutely nothing else to do, which is not too often :).

And yes, the programmers are the best users - they speak your language and know how to define a problem and spec it out.