For the last few sessions I've been using a podcast from TheMeditationPodcast.com
It's worked out pretty well so far. I find the animal sounds to be a wee bit distracting, but this is the first one with the tones that made me zonk pretty hard.
Today I couldn't get my brain to shut up long enough to really zone out, but that's ok. I have a gazillion things I need to sort out over the next few days so I'm not really surprised.
Just sticking to the routine and making sure I get it in daily, because I can tell if I haven't.
I don't know why I never did this before, but I'm glad I've started!