Switching between OS X partitions usually requires you to either manually change your startup disk or hold down the Option key when you boot, but iDownloadBlog reader Antony Verros shares a simple AppleScript that makes rebooting a bit simpler.
If you find yourself booting between partitions a lot (like to check out that new Yosemite beta), an AppleScript can make the process easier. Once it's set up, you can just click on the application in your dock and reboot to your partition of choice. You'll need to do a little manual tweaking to get it to boot into the drive on your computer, but it's pretty straightforward to do. Head over to iDownloadBlog for the script and guide.
How to quickly switch between Mavericks and Yosemite beta [iDownloadBlog]