Here's a picture of my Windows 8 taskbar, and I'm wondering if anyone has ever seen if it's possible to make the changes I'm looking for through registry hacks or through some program. MS clearly neglects the vertical taskbar, and having the "Show Desktop" button on the bottom is really useless because I have to very carefully click the button now or else it is totally hidden behind the new start charm. The new Start button in 8.1 could in theory fix the problem except for the fact that you can't disable just the start charm. MS only allows you to turn off the top left and top right charms. Why the hell would I want BOTH a button and the charm? And why on earth would my icons be left aligned when every other taskbar icon is center aligned?
Maybe you could try this It's not what you want, but, I use a new toolbar, with a link to the old show desktop icon, so I can have a show desktop icon, on the left of my taskbar.
An idea for the show desktop icon. Turn it off. As far as I know you can do that in Windows 8. After that, just make a custom toolbar and put the good old Show Desktop.lnk file. You can even add the old quick launch toolbar (C:\Users\****\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch) and have that icon ready. Move it wherever you want to. EDIT: LOL, beaten.