This post was published long before the Mists of Pandara Expansion.
The tips and techniques explained here may be outdated.
Fubar_tcgTradeskills adds a tiny set of profession buttons to your Fubar. I position these in the upper-righthand corner of my screen. Mousing over the buttons will open a drop-down showing all of the tradeskill levels on all of your toons. Clicking the buttons will open the tradeskill window for this toon for that button.
Additionally, it tracks cooldowns and displays the time until it’s available when you log into any toon. When the cooldown expires it will display popups to remind you that the cooldown has expired.