RSS Mix allows you to combine multiple RSS feeds into a single feed. I'm currently using this on Craigslist searches on used cars. It helps keep your RSS feed subscription list tidy rather than having 5-10 separate feeds for the same purpose.
Nice Chris. Strangely when I was post the link I had some weird feeling like I had heard of this sort of this before. By the way, who did you have combine the LC RSS feeds together? I have trouble finding anyway who enjoys RSS feeds as much as myself.