This is a short Vim plug-in to generate a LaTeX template like the following, given a set of numbers representing the problems you need to do.
\begin{probset}
\prob{26}
\prob{28}
% ...
\end{pset}
Generating the template is done with the :Pset Vim command that takes a space
separated list, for example :Pset 26 28 30 40 44.
I use the following environment.
\newenvironment{probset}%
{\begin{enumerate}
\newcommand*{\prob}[1]{\setcounter{enumi}{##1-1}\item}}%
{\end{enumerate}}
There are three settings available: pset_begin, pset_end, and
pset_problem. They define what is put at the beginning, the end, and for each
problem. The pset_problem variable must contain an \r somewhere, as this is
substituted with the problem number. Both global and buffer local variables are
checked.
In the future, this plug-in will be customizable (indentation, separation, and names). I had one or two other ideas, but I forgot them.