Frames in beamer

There are some useful options for frames in beamer:

[c,t,b] Set vertical alignment (top, center, bottom.)
[fragile] Needed for special text (e.g. verbatim).
[plain] Omit headlines, footlines & sidebar for extra space.
[shrink=n] Shrinks text by n%. This option is very evil.

Options are put behind the {frame}, like:

\begin{frame}[fragile]

The suggestion is from this source.