Well, I'm home and I found the button Show Desktop to the far right.

Adam, I knew about the Windows key + D, but I wanted to have it easier. I had also got it into the start menu, but that also implied more than a simple click. Also, right-clicking on the taskbar brought up Show desktop as one of the options, but that too was not just a simple click. Your 2nd option is not available to me, be it my language version or because I just have Home premium. A couple of the other options there are equally not available to me. I liked your last option, but as I now have the far right thingie, I won't need it.

Thanks again everybody!

That and the up a directory tree button are 2 things I miss from Windows XP.

Nice to see you Inger, Oh, I quite like Windows + D!
Tony