This is why I love Emacs--if there's a trivial feature missing, adding it myself is almost always easier than even thinking about installing something else. 90% of the time, somebody else has a code snippet on StackOverflow or Emacs Wiki. 9% of the time, I can code it up myself with essentially no hassle--Emacs is self-documenting and makes developing Emacs in Emacs a pleasure. The remaining 1% of problems I usually just ignore: no program is going to be perfect, and Emacs is already more than close enough.