Uses for a small Virtual Private Server?

I rented a small VPS (~130MB of RAM) to run an IRC bot. The bot is no longer needed so I have a VPS until the billing period ends.

I also have shared web hosting but can anyone think of what a VPS might be useful for that can't be done on shared hosting?

I'm a developer for both web and desktop apps.

Suggestions for larger VPS's also welcome.

Solution 1:

Perhaps use it to host an exit node for the Tor network? Your ToS might block this though...

Mumble (or other VoIP) server
SVN / bzr / git + web interface
email
screen + irssi
rsync destination
torrent seeder (watch out for ToS and bandwidth charges!)
podcast processor - transcode for a target platform, time stretch audio to speed it up, or even cut out the leading and trailing X seconds of advertising and title/credits fluff. This will require CPU you wont have on shared hosting, and programs you need root access to install.
nginx / lighthttpd. Use the opportunity to learn about alternative web servers.
run a tor node. It's not like you care if the account gets suspended.

Counterstrike game server!?!?!!

Don't really play games anymore, so I'm not sure if CS is still popular, so replace counterstrike with any other FPS that requires a host server.

Install BOINC and pick a project

This is what became of the SETI@Home project although you can now pick many projects to donate your CPU cycles to.