Yay, puns! :)<p>The first thing that comes to mind are help tooltips (a.k.a. balloons).  There are a few third-party libraries, but none of them that I&#x27;m aware of get it quite right (especially for tooltips on menu items).<p>There are couple of other common widgets as well, but I&#x27;m having trouble thinking of them at the moment.<p>At any rate, there aren&#x27;t too many (and ttk helps immensely in this regard), but it&#x27;s something you miss coming from Qt.<p>On the other hand, being able to put a minimal, but very usable gui together with just a few lines of code is a real strength of Tcl&#x2F;Tk. (Though I usually use Python+Tkinter as I tend to write scientific applications.)  There&#x27;s a lot to be said for the right level simplicity vs batteries-included.