Question: I'm using `todonotes` to make notes on my thesis. I'd like to be able to put some dot-points on a couple of the larger notes, like this:

```
\todo[inline]{
  \begin{itemize}
    \item blah blah blah
  \end{itemize}
}

```

But I get this error message:

```
! Argument of \reserved@a has an extra }.
<inserted text>
            \par
l.9 }

```

Is there anything I can do to get around this, or is it basically not worth trying?

Answer: 
You have to use the `caption` option:

```
\documentclass{article}
\usepackage{todonotes}
\begin{document}
\todo[inline,caption={}]{
  \begin{itemize}
    \item blah blah blah
  \end{itemize}
}
\end{document}

```

As described on page 12 of the [manual](http://mirrors.ctan.org/macros/latex/contrib/todonotes/todonotes.pdf) LaTeX will otherwise try to embed a `minipage` which leads to an error.
The colon problem occurs if the `prependcaption` option is set in the package options.

If you remove this option, the set caption (or the colon, if the caption is empty) is no longer displayed on the left.