Every time I listen to an episode of @thomas's Yes Indie'd Pod, I get random ideas about *designing* a game I'll never follow up on, but it's inspiring in the moment and keeps me engaged. His guests are always interesting, and he's always genuinely interested in them, so every episode is a delight, no matter the topic.
"Actual Play" has never been my thing, but Emily C. Friedman even managed to make them interesting, too!
I mostly listen to podcasts while running, so my brain loves to come up with great ideas that will fade by the time I'm somewhere I can write them down. I have way too many Untitled Google Docs with indecipherable notes about games, stories, blog posts, marketing campaigns, etc that will never result in anything tangible.
That's the real runner's high!