[NTG-context] What’s your favorite command?

Hi all, to bring some traffic to the list I have a question where I hope even non regulars send a answer. The ConTeXt package is huge and provides dozen of commands but I guess many have *one* favorite command (maybe also functionality). As I started this thread I’ll present my favorite command which is \donothing, it is a internal command and only a synonym for \empty but it’s one reason why I prefer ConTeXt’s coding style (especially with the recent changes in MkIV) over the unreadable LaTeX code. Wolfgang