OK, thanks for your opinions.
Yeah, I try to use certain clothes for the dirty work - but I'm also often in the work shop in the evening "just finishing something" or so, and I don't change clothes then.
The point on the apron is that it reminds me of my former master back when I did my industrial training. He was rigorous and has learned me me quite some. I might get scared when I look down on me
I'll do a little research on the web. Oh, and I'll make up a dinner in our favorite restaurant