How to make it so that pidgin is always on top and always on all visible workspaces in Gnome, no matter if I restart it or not?
I used to use devilspie to do this. Been a while though.
From the aboved linked page:
1) Install Devil's Pie (a small window-matching utility)
2) Create gcalctool.ds file in ~/.devilspie directory and put the following lines:
3) Set Devil's Pie to startup on user login in session manager open Sessions preferences and add startup program System -> Preferences -> Personal -> Sessions [Add]
The described procedure about making windows "always on top" is not crucial, but I hope it is helpful.