What are some smaller project's that you could execute in a day to a week or so?
I'm think along the lines of setting up a personal email server, basic portfolio site, etc. Things that could broaden your knowledge of different services.
edit: Another example of what I was thinking about is setting up a basic dropbox clone for personal use running on your own server.
Find one that is useful for you and transform it on a cloud-based software. A spreadsheet as a service, if you will.