How come the button can't just link to it as a short cut? I know about the exe file only buttons, but I beleiev you can write a .wsd file and link it to the button show desktop.
Also, strangely enough, if you have a smartbutton and it is configured to go to the quicklaunch folder, guess what? The show desktop button is there as well (at least on my computer it was... win2000)
Also with win Menu, I believe you could set it to link to the show desktop button. But that would be 2 steps and not one...
Take a look at SETI (search for windowblinds under the name SETI) There are 2 of them. One in orange and one in green. Lots of buttons.
Funny you have this thread, thanks to SETI, am am inspired to make a skin with.... take a seat... 140 buttons!!!
(why 140? I don't know)
I have no idea how or what they will do but they are going to be in there.
winMenu
2 smartbuttons
roll up
always on top
always in front
attached to desktop
system drives
winamp 2
windows media player
display properties
specail folders (all of them)
and some others I can't think of right now
But to answer your question, how many is to many?
As long as the window is clean and useable, I think its cool. It can look really busy (check out some 2001 skins on wincuto) but I think it can look really good and simple if you want it that way.
haha that is my 2 cents.