Aside: some other stuff you are supposed to be able to do with Bloglines.
To quote from the Bloglines News Blog (It's not exactly a real blog):
We are pleased to announce our newest feature, package tracking. Now, you can have Bloglines track the status of your UPS, FedEx, and USPS packages. From your My Feeds page, click the Add link in the left pane. Then, click the Package Tracking link in the right pane. From there you can enter tracking numbers for UPS, FedEx, and USPS packages. Also, you can do a search on a specific tracking number. Entering a tracking number will create a subscription in your account that is updated whenever the status of your package changes.
and from Bloglines help:
Podcasts
If you are new to podcasting, find a few to sample by checking out some of the online guides to the new art, like www.ipodder.org or www.podcastingnews.com. Every podcast has an RSS feed, so simply subscribe to your favorites as you would any other kind of blog or news feed in Bloglines.
Once you subscribe to a podcast feed in Bloglines, it will be added to your personal My Feeds list. When a new podcast is available, you’ll see the alert next to that feed. Each podcast update has a text note accompanied by an “enclosure” icon that links to the audio podcast file. Simply click on that enclosure link to start the podcast. That will launch your desktop media player or specialized podcasting software like www.dopplerradio.net, and the podcast of your choice will play right from Bloglines.
Plus you can save podcasts to your Clippings folder, or post them to your Clip Blog to share with others.
Experienced podcast listeners like to use Bloglines to monitor for updates and get notification when new podcasts are available, so they never miss episodes of their favorites.
I haven't tried either of these, so can't vouch for them. I have read that there are better ways to track packages.